
question_answer1) In an office the working hours are 10.30 AM to 5.30 PM and in between 30 minutes are spent on lunch. Find the ratio of office hours to the time spent for lunch.
A) 7:30 done
clear
B) 1:14 done
clear
C) 14:1 done
clear
D) 30:7 done
clear
View Solution play_arrow

question_answer2) In a cricket coaching camp, 1200 children are trained out of which 900 are selected for various matches. Ratio of nonselected children to the total number of children is
A) 300:120 done
clear
B) 4:1 done
clear
C) 1:4 done
clear
D) 120:300 done
clear
View Solution play_arrow

question_answer3) Ratio of 250 ml to 2 L is
A) 25:200 done
clear
B) 8:1 done
clear
C) 1:8 done
clear
D) 2:1 done
clear
View Solution play_arrow

question_answer4) For 25:10 :: 10:4, the mean proportion is
A) 25 done
clear
B) 10 done
clear
C) 4 done
clear
D) 100 done
clear
View Solution play_arrow

question_answer5) If x : y:: y: z, then the correct statement is
A) \[C.I.=AP=P\] done
clear
B) \[\left\{ {{\left( 1+\frac{R}{100k} \right)}^{nk}}1 \right\}\] done
clear
C) \[{{R}_{1}}%\] done
clear
D) \[{{R}_{2}}%\] done
clear
View Solution play_arrow

question_answer6) First, third and the fourth terms of a proportion are 6, 12 and 36. Then the second term is
A) 12 done
clear
B) 18 done
clear
C) 16 done
clear
D) 108 done
clear
View Solution play_arrow

question_answer7) In a quiz programme the ratio of correct answers to incorrect answers is 5:2. If 16 incorrect answers are given then the number of correct answers given is
A) 80 done
clear
B) 40 done
clear
C) 20 done
clear
D) 30 done
clear
View Solution play_arrow

question_answer8) The middle terms of proportion are called
A) antecedents done
clear
B) mean terms done
clear
C) extremes done
clear
D) consequents done
clear
View Solution play_arrow

question_answer9) The ratio of Rs.3 and 60 paise is
A) 1:20 done
clear
B) 5:1 done
clear
C) 1:2 done
clear
D) 20:1 done
clear
View Solution play_arrow

question_answer10) The ratio of the incomes of Kamala and Vimala is 2:3. If Kamala's income is Rs. 9000, then Vimala's income is
A) Rs.13,500 done
clear
B) Rs.6000 done
clear
C) Rs.12,000 done
clear
D) None of these done
clear
View Solution play_arrow

question_answer11) Mala and Bala got 75 marks and 25 marks respectively in an examination. Find the ratio of the marks scored by Mala to the total marks obtained by both of them?
A) 3:4 done
clear
B) 3:1 done
clear
C) 1:3 done
clear
D) 4:3 done
clear
View Solution play_arrow

question_answer12) The ratio of the least prime number to the least composite number is
A) 1:2 done
clear
B) 2:3 done
clear
C) 1:4 done
clear
D) 1:3 done
clear
View Solution play_arrow

question_answer13) A garrison has provisions for certain number of days. After 15 days, 1/4 th of the men left and if it as found that the provisions will now last just as before. How long was that?
A) 50 days done
clear
B) 60 days done
clear
C) 70 days done
clear
D) 120 days done
clear
View Solution play_arrow

question_answer14) If the rent for grazing 40 cows for 20 days is Rs.370, how many cows can graze for Rs.111 for 30 days?
A) 60 done
clear
B) 8 done
clear
C) 25 done
clear
D) 30 done
clear
View Solution play_arrow

question_answer15) \[x\propto y.\]When \[x=24,\,y=40.\] Find x when y=130.
A) 56 done
clear
B) 96 done
clear
C) 78 done
clear
D) 120 done
clear
View Solution play_arrow

question_answer16) 175 men can dig a canal 3150 m long in 36 days. How many men are required to dig a canal 3900 m long in 24 days?
A) 256 done
clear
B) 225 done
clear
C) 325 done
clear
D) 384 done
clear
View Solution play_arrow

question_answer17) Asha can stitch 'x' shirts in \[A=P\left( 1+\frac{{{R}_{1}}}{100} \right)\left( 1+\frac{{{R}_{2}}}{100} \right)....\left( 1\frac{{{R}_{n}}}{100} \right),\] minutes. At this rate, how many shirts can she stitch in \[C.I.=P\left[ \left( 1+\frac{{{R}_{1}}}{100} \right)\left( 1+\frac{{{R}_{2}}}{100} \right)....\left( 1+\frac{{{R}_{n}}}{100} \right)1 \right]\]th of an hour?
A) 50x done
clear
B) \[5\frac{1}{4}\] done
clear
C) 60x done
clear
D) \[A=P{{\left( 1+\frac{R}{100} \right)}^{5}}\left( 1+\frac{\frac{R}{4}}{100} \right)\] done
clear
View Solution play_arrow

question_answer18) X can do a piece of work in 24 days, while Y alone can do it in 16 days. With the help of Z they finish the work in 8 days. Find in how many days Z can do the work alone?
A) 48 days done
clear
B) 36 days done
clear
C) 24 days done
clear
D) 12 days done
clear
View Solution play_arrow

question_answer19) A can do a job in 6 days, B alone can do it in 8 days and C alone can finish the job in 24 days. A and B together are paid Rs.3 50. Then how much money is paid to C?
A) Rs.50 done
clear
B) Rs. 40 done
clear
C) Rs.70 done
clear
D) Rs.150 done
clear
View Solution play_arrow

question_answer20) A cistern can be filled separately by two pipes in 12 and 16 minutes separately. If both fill pipes are opened together, when will the cistern be filled?
A) \[{{V}_{0}}\]min done
clear
B) \[4\frac{6}{7}\]min done
clear
C) \[{{V}_{n}}={{V}_{0}}{{\left( 1\frac{R}{100} \right)}^{n}}.\]min done
clear
D) \[4\frac{1}{2}\] min done
clear
View Solution play_arrow

question_answer21) Walking \[{{R}_{1}}%\] th of his usual rate, a boy reaches his school 4 minutes early. Find his usual time to reach the school.
A) 40min done
clear
B) 32min done
clear
C) 28min done
clear
D) 48min done
clear
View Solution play_arrow

question_answer22) A man travels 100 kms in 5 hrs and another 200 kms in 15 hrs. Find his average speed.
A) 15km/hr done
clear
B) 10 km/hr done
clear
C) 20km/hr done
clear
D) None of these done
clear
View Solution play_arrow

question_answer23) A train running at a speed of 52 km/hr takes 15 sec to pass a man running at 4 km/hr in the same direction. Find the length of train.
A) 100m done
clear
B) 150m done
clear
C) 300m done
clear
D) 200m done
clear
View Solution play_arrow

question_answer24) A train 140m long is running at 60 km/hr. In how much time will it pass a tunnel 260 m long?
A) 18 sec done
clear
B) 24 sec done
clear
C) 30 sec done
clear
D) 15 sec done
clear
View Solution play_arrow

question_answer25) Excluding stoppages, the speed of a train is 45 km/hr and including stoppages it is 36 km/hr. For how many minutes does the train stop per hour?
A) 12min done
clear
B) 10min done
clear
C) 8min done
clear
D) None of these done
clear
View Solution play_arrow

question_answer26) The number of seats for admission is increased by 10% every year. If the number of seats in 2001 was 400, what were the number of seats in 2003?
A) 824 done
clear
B) 484 done
clear
C) 500 done
clear
D) 480 done
clear
View Solution play_arrow

question_answer27) The price of an article diminished twice successively, first by 30% and then by 40%. If the original price was Rs.1000, what is it now?
A) Rs.400 done
clear
B) Rs.300 done
clear
C) Rs.240 done
clear
D) Rs.420 done
clear
View Solution play_arrow

question_answer28) 35% population of a town are men and 40% are women. If the numbers of children are 20,000, then the number of women will be?
A) 3200 done
clear
B) 30,050 done
clear
C) 32,000 done
clear
D) 31,500 done
clear
View Solution play_arrow

question_answer29) A positive number is by mistake divided by 6 instead of being multiplied by 6. What is the % error (approximately)?
A) 3.86 done
clear
B) 97.22 done
clear
C) 83.27 done
clear
D) 75.35 done
clear
View Solution play_arrow

question_answer30) After deduction of 5% from a certain sum and then 10% from the remainder, a sum of Rs. 171 is left. The original sum was
A) Rs. 200 done
clear
B) Rs. 250 done
clear
C) Rs. 150 done
clear
D) Rs. 300 done
clear
View Solution play_arrow

question_answer31) The CP of 25 articles is equal to the SP of 20 articles. Then gain % is
A) 25% done
clear
B) 20% done
clear
C) 30% done
clear
D) 50% done
clear
View Solution play_arrow

question_answer32) A person sells 36 oranges per rupee and incurs a loss of 4%. Find how many oranges per rupee to be sold to have a gain of 8%?
A) 32 done
clear
B) 30 done
clear
C) 28 done
clear
D) 34 done
clear
View Solution play_arrow

question_answer33) A customer saves Rs.15 when a discount of 20% on the marked price is offered. What did he pay for the article?
A) Rs.120 done
clear
B) Rs.80 done
clear
C) Rs.60 done
clear
D) Rs.75 done
clear
View Solution play_arrow

question_answer34) A man sold 10 eggs for 5 rupees and gained 20%. How many eggs did he buy for 5 rupees?
A) 12 done
clear
B) \[\frac{25}{12}\] done
clear
C) 25 done
clear
D) None of these done
clear
View Solution play_arrow

question_answer35) A shopkeeper's price is 50% above the cost price. If he allows his customer a discount of 30% what profit does he make?
A) 15% done
clear
B) 10% done
clear
C) 5% done
clear
D) 20% done
clear
View Solution play_arrow

question_answer36) 11 oranges are bought for Rs.10 and 10 oranges are sold for Rs.11. Find the gain (or) loss per cent.
A) 21% loss done
clear
B) 11% gain done
clear
C) 21% gain done
clear
D) 11% loss done
clear
View Solution play_arrow

question_answer37) Marked price of an article is 20% above the CP. He allows his customers a discount and makes a profit of 8%. Find the rate of discount.
A) 10% done
clear
B) 12% done
clear
C) 20% done
clear
D) 18% done
clear
View Solution play_arrow

question_answer38) A man buys a radio for Rs.600 and sells it at a gain of 25%. He sold the radio for
A) Rs.700 done
clear
B) Rs.750 done
clear
C) Rs.900 done
clear
D) Rs.1000 done
clear
View Solution play_arrow

question_answer39) A shopkeeper sold two watches for Rs.425 each, gaining 10% on one and losing 10% on the other. Then he
A) Neither gains nor loss done
clear
B) Gains 1% done
clear
C) Loses 1% done
clear
D) None of these done
clear
View Solution play_arrow

question_answer40) A single discount equal to a discount series of 10% and 20% is
A) 25% done
clear
B) 30% done
clear
C) 35% done
clear
D) 28% done
clear
View Solution play_arrow

question_answer41) A man purchased two articles for Rs.3000 each, by selling those he gains 20% on the one and loses 20% on the other. Find the gain (or) loss per cent on the whole transaction.
A) 4% loss done
clear
B) 4% gain done
clear
C) no profit, no loss done
clear
D) None of these done
clear
View Solution play_arrow

question_answer42) At what rate of interest per annum will a sum double itself in 8 years, if calculated as per Simple Interest formula?
A) 25% done
clear
B) \[{{n}_{1}}\] done
clear
C) \[{{R}_{2}}%\] done
clear
D) None of these done
clear
View Solution play_arrow

question_answer43) A milkman borrowed Rs.2500 from two money lenders. For one loan, he paid 5% p.a. and for the other, he paid 7% p.a. The total interest paid after two years was Rs.275. Calculate the money he borrowed at 7% interest?
A) Rs.1875 done
clear
B) Rs.1000 done
clear
C) Rs.625 done
clear
D) Rs.1200 done
clear
View Solution play_arrow

question_answer44) Of a certain sum, \[{{n}_{2}}\]rd is invested at 3%\[{{R}_{k}}%\]th at 6% and the rest at 8%. If the SI for 2 years from all these investments amounts to Rs.600. Then the original sum was
A) Rs.2000 done
clear
B) Rs.3000 done
clear
C) Rs.4000 done
clear
D) Rs.5000 done
clear
View Solution play_arrow

question_answer45) A sum was put at SI at a certain rate for 4 years. Had it been put at 2% higher rate, it would have fetched Rs. 56 more? Find the sum.
A) Rs. 500 done
clear
B) Rs. 600 done
clear
C) Rs. 700 done
clear
D) Rs. 800 done
clear
View Solution play_arrow

question_answer46) In what time will Rs.72 become Rs. 81 at \[{{n}_{1}}+{{n}_{2}}+.....{{n}_{k}}\]p.a. SI?
A) \[V={{V}_{0}}{{\left( 1\frac{{{R}_{1}}}{100} \right)}^{{{n}_{1}}}}.{{\left( 1\frac{{{R}_{2}}}{100} \right)}^{{{n}_{2}}}}....{{\left( 1\frac{{{R}_{k}}}{100} \right)}^{{{n}_{k}}}}\]year done
clear
B) \[=P{{\left( 1+\frac{R}{100} \right)}^{n}}\]years done
clear
C) 2 years done
clear
D) None of these done
clear
View Solution play_arrow

question_answer47) Bhanu borrowed a certain sum of money at 12% per annum for 3 years and madhuri borrowed the same sum at 24% per annum for 10 years. Find the ratio of their amounts.
A) 1:3 done
clear
B) 2:1 done
clear
C) 2:3 done
clear
D) 2:5 done
clear
View Solution play_arrow

question_answer48) Gopi borrowed Rs.1800 at 12% per annum for 2 years and Krishna borrowed Rs.1200 at 18% per annum for 3 years. Then the ratio of interests paid by them is?
A) 1:2 done
clear
B) 2:3 done
clear
C) 3:1 done
clear
D) 2:1 done
clear
View Solution play_arrow

question_answer49) Divide Rs. 8000 into two parts so that the SI on the first part for 5 years at 12% per annum is equal to SI on the second part for 2 years at 18 % per annum?
A) 2000, 6000 done
clear
B) 5000, 3000 done
clear
C) 4000, 4000 done
clear
D) None of these done
clear
View Solution play_arrow

question_answer50) A sum of Rs.450 amounts to Rs.495 in 2 years, hi what time will the sum of Rs.820 amount to Rs. 943 at the same rate?
A) 3 years done
clear
B) 2 years done
clear
C) 4 years done
clear
D) 6 years done
clear
View Solution play_arrow

question_answer51) Find the SI on Rs.1800 from 21st Feb 2003 to 12th April 2003 at 7.3 % rate per annum.
A) Rs.18.25 done
clear
B) Rs.18.00 done
clear
C) Rs.18.50 done
clear
D) Rs.18.75 done
clear
View Solution play_arrow

question_answer52) A sum of money, at compound interest, yields Rs.200 and Rs.220 at the end of first and second year respectively. The rate % is
A) 20 done
clear
B) 15 done
clear
C) 10 done
clear
D) 5 done
clear
View Solution play_arrow

question_answer53) The difference in SI and CI on a certain sum of money in 2 years at 15% p.a. is Rs.544. The sum is
A) Rs.6000 done
clear
B) Rs.6200 done
clear
C) Rs.6300 done
clear
D) Rs.6400 done
clear
View Solution play_arrow

question_answer54) The CI on Rs.8000 for 1 year at 5% p.a. payable halfyearly is
A) Rs.800 done
clear
B) Rs.810 done
clear
C) Rs.400 done
clear
D) Rs.405 done
clear
View Solution play_arrow

question_answer55) The present population of a town is 25,000. It grows at 4%, 5% and 8% during first year, second year and third year is respectively, the population after 3 years is
A) 29,484 done
clear
B) 28,696 done
clear
C) 24,576 done
clear
D) 30,184 done
clear
View Solution play_arrow

question_answer56) The cost of a vehicle is Rs.1,75,000. If its value depreciates at the rate of 20% per annum, then the total depreciation after 3 years was
A) Rs.86,400 done
clear
B) Rs.82.500 done
clear
C) Rs.84,500 done
clear
D) Rs.85,400 done
clear
View Solution play_arrow

question_answer57) The CI on a certain sum for 2 years at 10% per annum is Rs.525. The SI on the same sum for double the time at half the rate per cent per annum is
A) Rs.400 done
clear
B) Rs.500 done
clear
C) Rs.600 done
clear
D) Rs.800 done
clear
View Solution play_arrow

question_answer58) A sum of money doubles itself in 3 years at CI, when the interest is compounded annually. In how many years will it amount to 16 times of itself?
A) 6 years done
clear
B) 8 years done
clear
C) 12 years done
clear
D) 16 years done
clear
View Solution play_arrow

question_answer59) A sum lent at SI amounts in 2 years to Rs.578.40 and in 3 years to Rs.614.55. Find the rate of interest.
A) 5% done
clear
B) \[=\frac{R}{{{\left( 1+\frac{R}{100} \right)}^{n}}}\] done
clear
C) 7% done
clear
D) \[{{R}_{1}}%\] done
clear
View Solution play_arrow

question_answer60) Articles are bought at 42 paise a dozen and sold at 85 paise a score (A group of twenty). The profit per cent is
A) 21% done
clear
B) 213% done
clear
C) 33. % done
clear
D) 32% done
clear
View Solution play_arrow

question_answer61) The selling price when goods which cost Rs.65 are sold at a loss of 10% is
A) Rs.71.50 done
clear
B) Rs.58.50 done
clear
C) Rs.59.75 done
clear
D) Rs.6.50 done
clear
View Solution play_arrow

question_answer62) A publisher sells books to a retail dealer at Rs.5 a copy but allows 25 copies to count as 24. If the retailer sells each of the 25 copies Rs.6, his profit per cent is
A) 20% done
clear
B) 25% done
clear
C) 24% done
clear
D) 40% done
clear
View Solution play_arrow

question_answer63) If the discount is 10%, an item bought for Rs.9 is priced at
A) Rs.11 done
clear
B) Rs.10 done
clear
C) Rs.8.10 done
clear
D) Rs.12 done
clear
View Solution play_arrow

question_answer64) 8% of Rs.625 is equal to
A) Rs.50 done
clear
B) Rs.75 done
clear
C) Rs.80 done
clear
D) Rs.100 done
clear
View Solution play_arrow

question_answer65) If a merchant estimates his profits as 20% of the selling price, what is his real profit per cent?
A) 25% done
clear
B) 20% done
clear
C) 22% done
clear
D) 30% done
clear
View Solution play_arrow

question_answer66) A cycle is sold for Rs.880 at a loss of 20%. For how much should it be sold to gain 10%?
A) Rs.1400 done
clear
B) Rs.1210 done
clear
C) Rs.1100 done
clear
D) Rs.1000 done
clear
View Solution play_arrow

question_answer67) A train passes a telegraph post in 40 seconds moving at the rate of 36 km. per hour. Find the length of the train.
A) 300m done
clear
B) 400m done
clear
C) 500m done
clear
D) 600m done
clear
View Solution play_arrow

question_answer68) Two bicyclists do the same journey by travelling respectively at the rate of 9 and 10 km an hour. Find the distance travelled when one takes 32 minutes longer than the other.
A) 42km done
clear
B) 44km done
clear
C) 48km done
clear
D) 50km done
clear
View Solution play_arrow

question_answer69) If the cost of the book worth Rs.50 is increased by Rs.25, the rate of increase is
A) 25% done
clear
B) 20% done
clear
C) 50% done
clear
D) 10% done
clear
View Solution play_arrow

question_answer70) A men spends Rs.3500 and save\[{{R}_{2}}%\] of his income. His monthly income is
A) Rs.4000 done
clear
B) Rs.3800 done
clear
C) Rs.4200 done
clear
D) Rs.4500 done
clear
View Solution play_arrow

question_answer71) If A's salary is 50% more than B's, then by what % B's salary is less than A's salary?
A) \[=P\left( 1+\frac{{{R}_{1}}}{100} \right)\times \left( 1+\frac{{{R}_{2}}}{100} \right).\] done
clear
B) \[=P{{\left( 1\frac{R}{100} \right)}^{n}}.\] done
clear
C) 33 done
clear
D) 30 done
clear
View Solution play_arrow

question_answer72) The product of two number remains constant; if one of them increases by 40%, by what % does the second get diminished?
A) \[=\frac{P}{{{\left( 1\frac{R}{100} \right)}^{n}}}\] done
clear
B) \[\frac{a}{b}=K\] done
clear
C) \[{{a}_{1}}\] done
clear
D) 60% done
clear
View Solution play_arrow

question_answer73) The price of wheat has increased by 60%. In order to restore the original price, the new price must be reduced by
A) 37.5% done
clear
B) 33% done
clear
C) 34% done
clear
D) 40% done
clear
View Solution play_arrow

question_answer74) The numerator of a fraction is increased by 20% and its denominator be diminished by 10%. The value of the fraction is\[{{b}_{1}}\] , then the fraction is
A) \[\frac{{{a}_{1}}}{{{b}_{1}}}=\] done
clear
B) \[{{a}_{2}}\] done
clear
C) \[{{b}_{2}}\] done
clear
D) \[\frac{{{a}^{2}}}{{{b}^{2}}}=k\] done
clear
View Solution play_arrow

question_answer75) On what sum will the compound interest for 3 years at 5% amount s to Rs.1261?
A) Rs.7000 done
clear
B) Rs.8000 done
clear
C) Rs.9000 done
clear
D) Rs.1000 done
clear
View Solution play_arrow

question_answer76) A sum of money placed at compound interest doubles itself in 4 years. In how many years will it amount to eight times itself?
A) 12yrs. done
clear
B) 14yrs. done
clear
C) 16yrs. done
clear
D) 18yrs. done
clear
View Solution play_arrow

question_answer77) If a certain sum is doubled in 8 years on simple interest, in how many years will it be 4 times?
A) 24 done
clear
B) 16 done
clear
C) 32 done
clear
D) 12 done
clear
View Solution play_arrow

question_answer78) The difference of simple interest on 13% p.a. and 12% p.a. of a certain sum in one year is Rs.110.00, then the sum is
A) Rs.12000 done
clear
B) Rs.13000 done
clear
C) Rs.11000 done
clear
D) Rs.16000 done
clear
View Solution play_arrow

question_answer79) At compound interest, if a certain sum of money doubles in n years then the amount will be four fold in
A) \[\frac{{{a}_{1}}}{{{b}_{1}}}=\frac{{{a}_{2}}}{{{b}_{2}}}\] done
clear
B) \[\Rightarrow \] done
clear
C) 2n years done
clear
D) 4n years done
clear
View Solution play_arrow

question_answer80) Rs.16000 are invested at 10% p.a. compounded semiannually amounts to Rs. 18522. Then the period of investment is
A) 1.5 years done
clear
B) 3 years done
clear
C) 2 years done
clear
D) \[\frac{5}{2}\] years done
clear
View Solution play_arrow

question_answer81) A man buys 5 apples for Rs.3 and sold each for Rs.2. What did he gain or lose?
A) \[\Rightarrow \]gain done
clear
B) 50% gain done
clear
C) \[\frac{{{a}_{1}}}{{{a}_{2}}}=\frac{{{b}_{1}}}{{{b}_{2}}}\]loss done
clear
D) \[\frac{100}{3}%\]gain done
clear
View Solution play_arrow

question_answer82) A dishonest dealer professes to sell his goods at cost price, but uses a weight of 900 grams for a kilogram weight. Find his real gain per cent.
A) \[{{a}_{1}}:{{a}_{2}}::{{b}_{1}}:{{b}_{2}}\] done
clear
B) 12% done
clear
C) 11% done
clear
D) 13.2% done
clear
View Solution play_arrow

question_answer83) By selling goods for Rs.153, a man loses 10%. For how much should he sell them to gain 20%?
A) Rs.204 done
clear
B) Rs.200 done
clear
C) Rs.201 done
clear
D) Rs.203 done
clear
View Solution play_arrow

question_answer84) I lost 20% by selling a watch for Rs.64. What per cent shall I gain or lose by selling it for Rs.100?
A) 10 done
clear
B) 20 done
clear
C) 25 done
clear
D) 30 done
clear
View Solution play_arrow

question_answer85) If a commission of 10% is given on the written price, the gain is 50%. What shall be the percentage of gain, if the commission is increased to 25%?
A) 20 done
clear
B) 22 done
clear
C) 25 done
clear
D) 26 done
clear
View Solution play_arrow

question_answer86) A man sold a watch for Rs.60 and lost something. Had he sold it for Rs.75, his gain would have been double the former loss. Find the cost price of the watch.
A) 60 done
clear
B) 62 done
clear
C) 64 done
clear
D) 65 done
clear
View Solution play_arrow

question_answer87) The fourth proportion of 5,15,20 is
A) 30 done
clear
B) 25 done
clear
C) 60 done
clear
D) \[{{a}_{1}}:{{a}_{2}}={{b}_{1}}:{{b}_{2}}\] done
clear
View Solution play_arrow

question_answer88) \[\frac{a}{b}=\frac{c}{d'}\]then \[\frac{ma+nc}{mb+nd}=\]
A) an : bm done
clear
B) m : n done
clear
C) a : b done
clear
D) md : an done
clear
View Solution play_arrow

question_answer89) A started a business investing Rs.35000. After 6 months, B joined him with capital Rs.60000. At the end of year, a profit of Rs.26000 divided with their capital. Find the difference of their earnings:
A) Rs. 1000 done
clear
B) Rs. 2000 done
clear
C) Rs. 2500 done
clear
D) Rs. 3000 done
clear
View Solution play_arrow

question_answer90) If x: y = 5 :2, then value of is
A) 22:29 done
clear
B) 29:22 done
clear
C) 61:26 done
clear
D) 26:61 done
clear
View Solution play_arrow

question_answer91) A fort is provisioned for 42 days, after 10 days a reinforcement of 200 men arrives and the food will now last 24 days. How many men were there in the fort?
A) 300 men done
clear
B) 400 men done
clear
C) 500 men done
clear
D) 600 men done
clear
View Solution play_arrow

question_answer92) Some men promised to do a job in 18 days, but 6 of them became absent and remainder men did the job in 20 days. What is the original number of men?
A) 50 done
clear
B) 52 done
clear
C) 56 done
clear
D) 60 done
clear
View Solution play_arrow

question_answer93) 15 years hence a man will be just 4 times as old as he was 15 years ago. His present age is:
A) 25 years done
clear
B) 20 years done
clear
C) 15 years done
clear
D) 10 years done
clear
View Solution play_arrow

question_answer94) If\[2A=3B=4C,\]then \[A:B:C:\]is:
A) \[{{a}_{1}},{{a}_{2}}\] done
clear
B) \[{{a}_{1}}\,\,{{b}_{1}}\] done
clear
C) \[{{a}_{2}}\,\,{{b}_{2}}=k\] done
clear
D) \[\therefore \] done
clear
View Solution play_arrow

question_answer95) 5% of 10% of Rs.175 is equal to:
A) Rs.8.75 done
clear
B) Rs.0.50 done
clear
C) Rs.0.875 done
clear
D) Rs.17.50 done
clear
View Solution play_arrow

question_answer96) The price of cooking oil has increased by 25%. The percentage of reduction that a family should effect in the use of cooking oil so as not to increase the expenditure on this account is:
A) 15% done
clear
B) 20% done
clear
C) 25% done
clear
D) 30% done
clear
View Solution play_arrow

question_answer97) If 10% of m is the same as 20% of n then m: n is equal to:
A) 1:2 done
clear
B) 2:1 done
clear
C) 5:1 done
clear
D) 10:1 done
clear
View Solution play_arrow

question_answer98) The average of 25 results is 18; that of first 12 is 14 and of the last 12 is 17, their thirteenth result is:
A) 78 done
clear
B) 85 done
clear
C) 28 done
clear
D) 72 done
clear
View Solution play_arrow

question_answer99) A ship sails out to a mark at the rate of 15km/hr and sails back at the rate of 10 km/hr. The average rate of sailing is:
A) 12.5km/hr done
clear
B) 12km/hr done
clear
C) 25km/hr done
clear
D) 5km/hr done
clear
View Solution play_arrow

question_answer100) Suresh has covered a distance of 6 km in 45 minutes. If he covers one half of the distance in \[{{a}_{2}}\,\,{{b}_{2}}={{a}_{2}}\,\,{{b}_{2}}\] rd time, what should be the speed in km/hr to cover the remaining distance?
A) 12km/h done
clear
B) 16km/h done
clear
C) 3km/h done
clear
D) 8km/h done
clear
View Solution play_arrow

question_answer101) A merchant buys 200 kg of rice at Rs.7.25 per kg, 400 kg of rice at Rs.5.75 per kg. He mixes them and sells one third of mixture at Rs.6 per kg. At what rate should he sell the remaining mixture so that he may earn a profit of 20% on the whole out lay?
A) Rs.28.25 per kg done
clear
B) Rs.13.25 per kg done
clear
C) Rs.8.25 per kg done
clear
D) none of these done
clear
View Solution play_arrow

question_answer102) A merchant borrowed Rs.2500 from two money lenders. For one loan he paid 12% per annum and for the other 14% per annum. The total interest paid for one year was Rs.326. How much did he borrow at each rate?
A) 1200and 1300 done
clear
B) 1350 and 1150 done
clear
C) 1225 and 275 done
clear
D) none of these done
clear
View Solution play_arrow

question_answer103) The average of \[31\frac{1}{2},32\frac{1}{2},31\frac{2}{3}\] and \[33\frac{3}{4}\] is:
A) \[\Rightarrow \] done
clear
B) \[{{a}_{1}}:{{a}_{2}}={{b}_{2}}:{{b}_{1}}\] done
clear
C) \[{{a}_{1}}:{{a}_{2}}::{{b}_{2}}:{{b}_{1}}\] done
clear
D) \[8\times 32=256,16\times 16=256,32\times 8=256\] done
clear
View Solution play_arrow

question_answer104) Two successive discounts of 10% and 5% are equal to a single discount of:
A) 7% done
clear
B) \[256\times 1=256.\] done
clear
C) \[\frac{1}{n}\] done
clear
D) 15% done
clear
View Solution play_arrow

question_answer105) A dealer makes her goods at 125% of cost price and then allow a 4% discount for cash payment. Calculate his profit on cash sales:
A) 10% done
clear
B) 15% done
clear
C) 20% done
clear
D) 25% done
clear
View Solution play_arrow

question_answer106) A man has some hens and cows. If the number of heads be 48 and the number of feet 140. The number of hens will be:
A) 26 done
clear
B) 24 done
clear
C) 23 done
clear
D) 22 done
clear
View Solution play_arrow

question_answer107) A bag contains Rs600 in the form of 1  rupee, 50 paise and 25 paise coins in the ratio 3 :4: 12, the number of 25 paise coins is:
A) 600 done
clear
B) 900 done
clear
C) 1200 done
clear
D) 1376 done
clear
View Solution play_arrow

question_answer108) A man loses 12% of his money and after spending 70% of the remainder, he was left with Rs.210. The money that he had at the beginning is
A) Rs.810 done
clear
B) Rs.800 done
clear
C) Rs.790 done
clear
D) Rs.780 done
clear
View Solution play_arrow

question_answer109) By selling a suitcase for Rs.570, a man loses 5%. At what price must he sell it to gain 5%?
A) Rs.630 done
clear
B) Rs.650 done
clear
C) Rs.580 done
clear
D) Rs.620 done
clear
View Solution play_arrow

question_answer110) The average of twenty results is 18, that of first 9 is Hand that of last 9 is 17. The average of middle two results is
A) 45 done
clear
B) 50.5 done
clear
C) 40.5 done
clear
D) 51.5 done
clear
View Solution play_arrow

question_answer111) If p is 95% of q, then what percentage of p is q?
A) 105% done
clear
B) 105.3% done
clear
C) 110% done
clear
D) 115% done
clear
View Solution play_arrow

question_answer112) A boy takes 20 minutes to reach the school at an average speed of 12 km/hour. If he wants to reach the school in 15 minutes, his average speed (in km/hour) will be
A) 16km/h done
clear
B) 17km/h done
clear
C) 18km/h done
clear
D) 19km/h done
clear
View Solution play_arrow

question_answer113) A number is increased by 10% and then reduced by 10%, then the number
A) Doesn?t change done
clear
B) Decreases by 1% done
clear
C) Increases by 1% done
clear
D) None of these done
clear
View Solution play_arrow

question_answer114) Ram owns a plot worth Rs.10,000. He sells it to Shyam at a profit of 10%. After sometime Shyam sells it back to Ram at a 10% loss, then Ram overall
A) Losses Rs.100 done
clear
B) Losses Rs.900 done
clear
C) Gains Rs.100 done
clear
D) gains Rs.1,106 done
clear
View Solution play_arrow

question_answer115) If a radio is sold at Rs.972, then profit is 8%. If it is sold at Rs.872, then there is a loss of
A) Rs.28 done
clear
B) Rs.25 done
clear
C) Rs.20 done
clear
D) Rs.15 done
clear
View Solution play_arrow

question_answer116) Sita's salary was reduced by 10%. In order to reach her salary back to the original amount it must be raised by
A) \[\frac{1}{5}\] done
clear
B) \[\frac{1}{8}\] done
clear
C) \[\frac{1}{8}\] done
clear
D) \[\frac{1}{6}\] done
clear
View Solution play_arrow

question_answer117) If the cost price of 6 articles is equal to the selling price of 4 articles, then the gain per cent is
A) 35% done
clear
B) 45% done
clear
C) 40% done
clear
D) 50% done
clear
View Solution play_arrow

question_answer118) A water tap fills a tank in p hours and the tap of the bottom of the tank empties it in q hours. If p is less than q and when both the taps are open, the tank is filled in r hours. Then
A) \[\frac{1}{6}\] done
clear
B) \[{{m}_{1}}\] done
clear
C) \[{{w}_{1}}\] done
clear
D) \[{{d}_{1}}\] done
clear
View Solution play_arrow

question_answer119) The compound interest on Rs.8,000 at 20% per annum for 9 months compounded quarterly is
A) 1,260 done
clear
B) 1,261 done
clear
C) 1,271 done
clear
D) 1,281 done
clear
View Solution play_arrow

question_answer120) Profit of an article is
A) The price at which an article is sold. done
clear
B) The price at which an article is bought done
clear
C) Difference between selling price and cost price, if selling price < cost price. done
clear
D) Difference between selling price and cost price, if selling price > cost price. done
clear
View Solution play_arrow

question_answer121) The condition for two ratios to be equal is
A) Product of means is equal to antecedents done
clear
B) Product of extremes is equal to consequents done
clear
C) Antecedents are equal to consequents done
clear
D) Product of means is equal to product of extremes done
clear
View Solution play_arrow

question_answer122) M men agreed to purchase a gift for Rs. C. If 3 men drop out, how much more will each have to contribute towards the purchase of the gift?
A) \[{{w}_{2}}\] done
clear
B) \[{{d}_{2}}\] done
clear
C) \[{{m}_{1}}{{d}_{1}}{{w}_{2}}={{m}_{2}}{{d}_{2}}{{w}_{1}}\] done
clear
D) \[\text{Averagespeed=}\frac{\text{Total distance travelled}}{\text{Total time taken}}\] done
clear
View Solution play_arrow

question_answer123) If the cost of printing a book of 380 pages with 20 lines on each page and on an average 11 words in each line is Rs.19, then the cost of printing a book with 280 pages 22 lines on each page and 10 words in each line is
A) Rs.14 done
clear
B) Rs.16 done
clear
C) Rs.18 done
clear
D) Rs.20 done
clear
View Solution play_arrow

question_answer124) Six diesel engines consume 900 liters of diesel, when each one is running for 5 hrs a day. How much diesel will be required by 9 engines, each running 8 hrs a day when 5 diesel engines of former type consume as much diesel as 8
A) 1500 lit done
clear
B) 1250 lit done
clear
C) 1350 lit done
clear
D) None of these done
clear
View Solution play_arrow

question_answer125) A can do a job in 20 days, B in 30 days and C in 60 days. If A is helped on every 3rd day by B and C, then in how many days, the job is finished?
A) 12 days done
clear
B) 15 days done
clear
C) 20 days done
clear
D) 10 days done
clear
View Solution play_arrow

question_answer126) P and Q can do a job in 25 days and 30 days respectively. They work together for 5 days and then p leaves. Q will finish the rest of work in how many days?
A) 19 days done
clear
B) 25 days done
clear
C) 35 days done
clear
D) 30 days done
clear
View Solution play_arrow

question_answer127) An empty pipe can empty \[=Speed\times Time\text{ }taken\] of cistern in 20 minutes. In 9 minutes, what part of cistern will be emptied?
A) \[\left( x+y \right)\] done
clear
B) \[\left( xy \right)\] done
clear
C) \[2n=3\] done
clear
D) \[\left( xy \right)\] done
clear
View Solution play_arrow

question_answer128) A boy has enough money to buy 20 books. If each book costs 25 paise less, he could buy two more books and still have 70 paise left. The money boy has is?
A) Rs. 16 done
clear
B) Rs. 24 done
clear
C) Rs. 48 done
clear
D) Rs. 36 done
clear
View Solution play_arrow

question_answer129) A man bought goods worth Rs.6000 and sold half of them at a gain of 10%. At what gain per cent must he sell the remainder to get a gain of 25% on the whole?
A) 40% done
clear
B) 25% done
clear
C) 30% done
clear
D) 20% done
clear
View Solution play_arrow

question_answer130) A and B undertake to do a piece of work for Rs.200. A can do it in 6 days and B in 8 days. With the help of C they finish it in 3 days. How much is paid to C?
A) Rs.25 done
clear
B) Rs.26 done
clear
C) Rs.27 done
clear
D) Rs.28 done
clear
View Solution play_arrow

question_answer131) Two men and a boy can do a piece of work in 5 days. While a man and 2 boys can do it in 6 days. If a man is paid at the rate of Rs.28 a week, what should be the wages of a boy?
A) Rs.10 done
clear
B) Rs.12 done
clear
C) Rs.16 done
clear
D) Rs.18 done
clear
View Solution play_arrow

question_answer132) In an examination 52% candidates failed in English, 42% in math?s and 17% in both. The percentage of those passed in both the subjects is:
A) 23% done
clear
B) 40% done
clear
C) 53% done
clear
D) 33% done
clear
View Solution play_arrow

question_answer133) Find the sum of money which increases by \[=\frac{3}{2}years\]of itself every year and amounts to Rs.450 in 5 years. If calculated as per simple interest formula.
A) Rs.100 done
clear
B) Rs.150 done
clear
C) Rs.300 done
clear
D) Rs.400 done
clear
View Solution play_arrow

question_answer134) I buy two watches for Rs.1350 and sell one so as to lose 6% and the other so as to gain 7.5% and on the whole I neither lose nor gain. What is price of watch which was sold at a loss?
A) 700 done
clear
B) 740 done
clear
C) 750 done
clear
D) 780 done
clear
View Solution play_arrow

question_answer135) A and B can do a piece of work in 18 days, B and C in 24 days, A and C in 36 days. In what time can they do it all working together?
A) 18 done
clear
B) 17 done
clear
C) 16 done
clear
D) 15 done
clear
View Solution play_arrow

question_answer136) The ratio of the ages of A and B ten years before was 3:5. The ratio of their presents ages is 2:3, their ages are respectively:
A) 30, 50 done
clear
B) 20, 30 done
clear
C) 40, 60 done
clear
D) 16, 24 done
clear
View Solution play_arrow

question_answer137) 10 years ago the age of the father was 5 times that of the son. 20 years hence the age of the father will be the twice that of the son. The present age of the father (in years) is:
A) 40 years done
clear
B) 45 years done
clear
C) 60 years done
clear
D) 70 years done
clear
View Solution play_arrow

question_answer138) 729 ml of a mixture contains milk and water in the ratio 7:2. How much more water is to be added to get a new mixture containing milk and water in the ratio 7:3?
A) 600 ml done
clear
B) 710 ml done
clear
C) 520 ml done
clear
D) none of these done
clear
View Solution play_arrow

question_answer139) The captain of a cricket team of 11 players is 25 years oldest and the wicketkeeper is 3 years older than the captain. If the ages of these two are excluded, the average age of the remaining players is 1 year less than the average age of the whole team. The average of the whole team is:
A) 21.5 year done
clear
B) 22 year done
clear
C) 22.5 year done
clear
D) 23 year done
clear
View Solution play_arrow

question_answer140) Ram's efficiency is 30% more than his friend Shyam. There is a work to be done which Ram can do exactly in 20 days working alone. Ram works for 10 days and Shyam joins him and they together complete the work. The ratio of work done by Shyam to work done by Ram:
A) 3:17 done
clear
B) 5:17 done
clear
C) 7:17 done
clear
D) none of these done
clear
View Solution play_arrow

question_answer141) The salaries of A, B and C together amount to Rs.333, if they spend 80%, 85% and 75% of their respective salaries'. If their savings are 7:6: 9, then their respective salaries are
A) Rs.102, Rs.118, Rs.113 done
clear
B) Rs.105, Rs.120, Rs.108 done
clear
C) Rs.85, Rs.125, Rs.123 done
clear
D) None of these done
clear
View Solution play_arrow

question_answer142) A candidate who gets 30% of the marks in an examination fails by 50 marks. Another candidate who gets 320 marks fails by 30 marks. Then the maximum marks is
A) 800 done
clear
B) 900 done
clear
C) 1,000 done
clear
D) 1,100 done
clear
View Solution play_arrow

question_answer143) Which discount series is profitable to the buyer 25%, 12%, 3%, or 18%, 1.7%, 5%?
A) First done
clear
B) Second done
clear
C) Both done
clear
D) Neither done
clear
View Solution play_arrow

question_answer144) In an examination 80% passed in English, 85% in Maths, 75% in both and 40 students failed in both subjects. Then the number of students appeared are
A) Rs.300 done
clear
B) Rs.400 done
clear
C) Rs.500 done
clear
D) Rs.600 done
clear
View Solution play_arrow

question_answer145) Consider the following statements. (I) If a sum of money is lent at simple interest, then the: (II) Money gets doubled in 5 years if the rate of interest is \[{{R}_{1}}%\] (III) Money gets doubled in 5 years if the rate of interest 20% (IV) Money becomes four times in 10 years if it gets doubled in 5 years. Which of the above statements is/are correct?
A) I and III done
clear
B) Only II done
clear
C) III alone done
clear
D) II and III done
clear
View Solution play_arrow

question_answer146) Match column I with column II and select the correct answer using the code given below the columns:
Column I  Column II 
(A) The ratio of 3.5 kg to 280 gm is  (p) 10.20 
(B) The compound ratio of 3:4,8:15 and 25:28 is  (q) 0.05 
(C) 0.35% of a number is equivalent to multiplying it by the number  (r) 5:14 
(D) 20% of 30% of 20% of Rs. 850 is  (s) 25:2 
(E) Half of 1 percent written as a decimal is  (t) 0.0035 
A) \[(A)\to p,(B)\to q,(C)\to r,(D)\to t,(E)\to q\] done
clear
B) \[(A)\to s,(B)\to r,(C)\to p,(D)\to t,(E)\to q\] done
clear
C) \[(A)\to r,(B)\to s,(C)\to t,(D)\to p,(E)\to q\] done
clear
D) \[(A)\to s,(B)\to r,(C)\to t,(D)\to p,(E)\to q\] done
clear
View Solution play_arrow

question_answer147) DIRECTION: Following questions consist of two statements, one labelled as the ?Assertion (A)? and the other as ?Reason (R)?. You are to examine these two statement carefully and select the answer to these items using the code given below. Assertion (A): If ?d? is x% more than ?b? and ?b? is y% less than 'a'. Then the relation between x and y is \[{{n}_{1}}+{{n}_{2}}+.....{{n}_{k}}\] Reason (R): If ?a? exceeds 'b? by P % then 'b? is short of 'a' by \[V={{V}_{0}}{{\left( 1\frac{{{R}_{1}}}{100} \right)}^{{{n}_{1}}}}.{{\left( 1\frac{{{R}_{2}}}{100} \right)}^{{{n}_{2}}}}....{{\left( 1\frac{{{R}_{k}}}{100} \right)}^{{{n}_{k}}}}\]
A) Both A and R are individually true and R is the correct explanation of A. done
clear
B) Both A and R are individually true but R is not the correct explanation of A. done
clear
C) A is true but R is false done
clear
D) A is false but R is true. done
clear
View Solution play_arrow

question_answer148) DIRECTION: Following questions consist of two statements, one labelled as the ?Assertion (A)? and the other as ?Reason (R)?. You are to examine these two statement carefully and select the answer to these items using the code given below. Assertion (A): The numbers 4, 6 and 9 are in continued proportion. Reason (R): The numbers 2, 4, 6 are also in continued proportion.
A) Both A and R are individually true and R is the correct explanation of A: done
clear
B) Both A and R are individually true but R is not the correct explanation of A. done
clear
C) A is true but R is false done
clear
D) A is false but R is true. done
clear
View Solution play_arrow

question_answer149) DIRECTION: Following questions consist of two statements, one labelled as the ?Assertion (A)? and the other as ?Reason (R)?. You are to examine these two statement carefully and select the answer to these items using the code given below. Assertion (A): An article is sold at Rs.1425 at a loss of 5%. Its C.P is Rs.1500. Reason (R): If the shopkeeper has to make a 10% profit in question given in statement 1 then the S.P should be Rs.6150.
A) Both A and R are individually true and R is the correct explanation of A: done
clear
B) Both A and R are individually true but R is not the correct explanation of A. done
clear
C) A is true but R is false done
clear
D) A is false but R is true. done
clear
View Solution play_arrow

question_answer150) DIRECTIONS: Reade the following passage and answer the questions that follow. PASSAGE  1 If \[=P{{\left( 1+\frac{R}{100} \right)}^{n}}\] is the value of an article at certain time which increases at the rate of \[=\frac{R}{{{\left( 1+\frac{R}{100} \right)}^{n}}}\]for first \[{{R}_{1}}%\]years and decreases at the rate of \[{{R}_{2}}%\] for next \[=P\left( 1+\frac{{{R}_{1}}}{100} \right)\times \left( 1+\frac{{{R}_{2}}}{100} \right).\] years, then the value of the article V at the end of \[=P{{\left( 1\frac{R}{100} \right)}^{n}}.\] years is given by \[=\frac{P}{{{\left( 1\frac{R}{100} \right)}^{n}}}\] The production of an article of a company in 2002 was 10000. Due to increase in demand, the company increased its production by 20% in the next 2 years. After 2 years due to decrease in the demand, the company decreased its production by 10% in the next year, then the production after 3 years is
A) 12950 done
clear
B) 12000 done
clear
C) 12900 done
clear
D) 12960 done
clear
View Solution play_arrow

question_answer151) DIRECTIONS: Reade the following passage and answer the questions that follow. PASSAGE  1 If \[=P{{\left( 1+\frac{R}{100} \right)}^{n}}\] is the value of an article at certain time which increases at the rate of \[=\frac{R}{{{\left( 1+\frac{R}{100} \right)}^{n}}}\]for first \[{{R}_{1}}%\]years and decreases at the rate of \[{{R}_{2}}%\] for next \[=P\left( 1+\frac{{{R}_{1}}}{100} \right)\times \left( 1+\frac{{{R}_{2}}}{100} \right).\] years, then the value of the article V at the end of \[=P{{\left( 1\frac{R}{100} \right)}^{n}}.\] years is given by \[=\frac{P}{{{\left( 1\frac{R}{100} \right)}^{n}}}\] Population of Chhapra district was 200000 on the last day of the year 2005. During next year is increased by 5% but due to an epidemic it decreased by 2% in the following year, then the population at the end of the year 2007 is
A) 205000 done
clear
B) 205800 done
clear
C) 206000 done
clear
D) 205700 done
clear
View Solution play_arrow

question_answer152) DIRECTIONS: Reade the following passage and answer the questions that follow. PASSAGE  1 If \[=P{{\left( 1+\frac{R}{100} \right)}^{n}}\] is the value of an article at certain time which increases at the rate of \[=\frac{R}{{{\left( 1+\frac{R}{100} \right)}^{n}}}\]for first \[{{R}_{1}}%\]years and decreases at the rate of \[{{R}_{2}}%\] for next \[=P\left( 1+\frac{{{R}_{1}}}{100} \right)\times \left( 1+\frac{{{R}_{2}}}{100} \right).\] years, then the value of the article V at the end of \[=P{{\left( 1\frac{R}{100} \right)}^{n}}.\] years is given by \[=\frac{P}{{{\left( 1\frac{R}{100} \right)}^{n}}}\] Sandeep started a factory with an initial investment of Rs.500000. In the next year, he incurred a loss of 20%. However, during the second year, he earned a profit of 10% and in the third year he earned a profit of 15%, then his net profit for the entire period of three years is
A) Rs.5000 done
clear
B) Rs.6000 done
clear
C) Rs.50000 done
clear
D) Rs.60000 done
clear
View Solution play_arrow

question_answer153) DIRECTIONS: Reade the following passage and answer the questions that follow. PASSAGE  1 If \[=P{{\left( 1+\frac{R}{100} \right)}^{n}}\] is the value of an article at certain time which increases at the rate of \[=\frac{R}{{{\left( 1+\frac{R}{100} \right)}^{n}}}\]for first \[{{R}_{1}}%\]years and decreases at the rate of \[{{R}_{2}}%\] for next \[=P\left( 1+\frac{{{R}_{1}}}{100} \right)\times \left( 1+\frac{{{R}_{2}}}{100} \right).\] years, then the value of the article V at the end of \[=P{{\left( 1\frac{R}{100} \right)}^{n}}.\] years is given by \[=\frac{P}{{{\left( 1\frac{R}{100} \right)}^{n}}}\] Consider the following statements (i) If two quantities varies directly with each other, then their product is constant, (ii) If two quantities varies inversely with each other, then their ratio is constant. Which of the statements given above is/are correct
A) only (i) done
clear
B) only (ii) done
clear
C) both done
clear
D) none done
clear
View Solution play_arrow

question_answer154) DIRECTIONS: Reade the following passage and answer the questions that follow. PASSAGE  1 If \[=P{{\left( 1+\frac{R}{100} \right)}^{n}}\] is the value of an article at certain time which increases at the rate of \[=\frac{R}{{{\left( 1+\frac{R}{100} \right)}^{n}}}\]for first \[{{R}_{1}}%\]years and decreases at the rate of \[{{R}_{2}}%\] for next \[=P\left( 1+\frac{{{R}_{1}}}{100} \right)\times \left( 1+\frac{{{R}_{2}}}{100} \right).\] years, then the value of the article V at the end of \[=P{{\left( 1\frac{R}{100} \right)}^{n}}.\] years is given by \[=\frac{P}{{{\left( 1\frac{R}{100} \right)}^{n}}}\] Consider the following statements (i) If P be the population of a city and R be the growth rate, then. Population after n \[\frac{a}{b}=K\] (ii) If P is the population of a city and R be the decay rate, then population after n years \[{{a}_{1}}\] Which of the statements(s) given above is/are correct?
A) Only (i) done
clear
B) Only (ii) done
clear
C) Both (i) and (ii) done
clear
D) Neither (i) nor (ii) done
clear
View Solution play_arrow