7th Class Mathematics Comparing Quantities Question Bank

done Ratio and Proportion, Percentage and S.I. and C.I. Total Questions - 40

• question_answer1)
  Which one among the following statements is not correct?
  A)
  The ratio of the heights 1.68m and 63cm of two persons can be written as 8: 3. done clear
  B)
  \[3:16::96:512\] done clear
  C)
  0.02 is equivalent to 2% done clear
  D)
  To compare two quantities/ their units can be different. done clear
  E)
  None of these done clear
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• question_answer2)
  The ratio \[\mathbf{3}:\mathbf{16}\]is equal to
  A)
  16.55 % done clear
  B)
  18.75 % done clear
  C)
  20.35 % done clear
  D)
  14.85 % done clear
  E)
  None of these done clear
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• question_answer3)
  If 15% of an amount is Rs.690 then find Rs.66% of the
  A)
  Rs. 2026 done clear
  B)
  Rs.3036 done clear
  C)
  Rs.2870 done clear
  D)
  Rs.2785 done clear
  E)
  None of these done clear
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• question_answer4)
  A farmer bought a buffalo for Rs. 64000 and a cow for Rs.27000. He sold the buffalo at a profit of 8% but made a loss of 18% on the cow. The net result of the transactions is _______.
  A)
  0.29% profit done clear
  B)
  0.34% loss done clear
  C)
  1.2% profit done clear
  D)
  1.2% loss done clear
  E)
  None of these done clear
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• question_answer5)
  The ratio of David's income to her savings is 7: 2. If the money saved by him is Rs.2000 then find his expenditure.
  A)
  Rs.4000  done clear
  B)
  Rs.5000 done clear
  C)
  Rs.6000 done clear
  D)
  Rs.7000 done clear
  E)
  None of these done clear
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• question_answer6)
  The ratio of copper and zinc in an alloy is 6: 5. If the weight of the copper in the alloy is found to be 20.22 gm, then the weight of zinc in the alloy is _________.
  A)
  15.75gm done clear
  B)
  17.25gm done clear
  C)
  16.85gm done clear
  D)
  19gm done clear
  E)
  None of these done clear
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• question_answer7)
  What should be added to each term of the ratio 3: 8 so that it may become equal to 2: 3?
  A)
  17 done clear
  B)
  12 done clear
  C)
  7          done clear
  D)
  22 done clear
  E)
  None of these done clear
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• question_answer8)
  If \[\mathbf{7a}\text{ }+\text{ }\mathbf{3b}\text{ }:\text{ }\mathbf{4a}\text{ }+\text{ }\mathbf{9b}\text{ }=\text{ }\mathbf{9}\text{ }:\text{ }\mathbf{7}\] then the value of \[\frac{\mathbf{a+b}}{\mathbf{a}}\] is _______.
  A)
  \[\frac{53}{60}\] done clear
  B)
  \[\frac{73}{70}\] done clear
  C)
  \[\frac{73}{60}\]  done clear
  D)
  \[\frac{53}{70}\] done clear
  E)
  None of these done clear
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• question_answer9)
  Ratio of the number of boys and girls in a school is 11: 8. If the difference between the number of boys and girls is of 363 then determine the total number of students in the school
  A)
  1898 done clear
  B)
  2397 done clear
  C)
  2299     done clear
  D)
    2457 done clear
  E)
  None of these done clear
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• question_answer10)
  In a bag, there are Rs.288 in the form of 1 rupee, 50 paise and 25 paise coins in the ratio 14:27:18. Find the number of 25 paise coins.
  A)
  144 done clear
  B)
  162 done clear
  C)
  108 done clear
  D)
  154 done clear
  E)
  None of these done clear
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• question_answer11)
  Two numbers are in the ratio 3:4. If the difference of their cube is 999 then difference of the numbers is ________
  A)
  5   done clear
  B)
  4 done clear
  C)
  3          done clear
  D)
  2 done clear
  E)
  None of these done clear
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• question_answer12)
  The marks obtained by three students in a test are in the ratio of 2: 3: 4. If maximum marks obtained among them is 36 then it is how much of the sum of the marks obtained by them?
  A)
  \[34\frac{5}{7}%\]% done clear
  B)
  \[44\frac{4}{9}%\]% done clear
  C)
  \[42\frac{2}{9}%\]% done clear
  D)
  \[45\frac{3}{5}%\]% done clear
  E)
  None of these done clear
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• question_answer13)
  Which one of the following is true?
  A)
  \[3:2>4:5>6:7>3:4\]   done clear
  B)
  \[3:2>6:7>4:5>3:4\] done clear
  C)
  \[3:2<6:7<4:5<3:4\] done clear
  D)
  \[3:2<4:5<6:7<3:4\] done clear
  E)
  None of these done clear
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• question_answer14)
  Three numbers are in the ratio\[\mathbf{2}:\mathbf{3}:\mathbf{4}\]. If sum of their squares is 1044, then find the sum of the numbers.
  A)
  63 done clear
  B)
  27 done clear
  C)
  54         done clear
  D)
  45 done clear
  E)
  None of these done clear
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• question_answer15)
  There are two boxes A and B having number of balls in the 3: 4. If 11 balls are taken out from box, B and dropped into box A, then the number of balls in both the boxes becomes equal. Find the total number of together.
  A)
  154 done clear
  B)
  168 done clear
  C)
  132 done clear
  D)
  110 done clear
  E)
  None of these done clear
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• question_answer16)
  The cost of type I sugar is Rs.44 per kg and the cost of type II sugar is per kg. If both type I and type II are mixed in the ratio of 3: 5 then what is the price per kg of the mixed variety of sugar?
  A)
  Rs.46.00 done clear
  B)
  Rs.46.50 done clear
  C)
  Rs.46.75 done clear
  D)
  Rs.47.00 done clear
  E)
  None of these done clear
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• question_answer17)
  A milk vendor has 2 containers of milk. In the first container, the water is 20% and the rest is milk and in the second container water is 60%. How much milk should he mix from each of the containers so as to get 15 litres of milk such that the ratio of water to milk is 7: 8?
  A)
  7 litres, 8 litres done clear
  B)
  5 litres, 10 litres done clear
  C)
  9 litres, 6 litres done clear
  D)
  4 litres, 11 litres done clear
  E)
  None of these done clear
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• question_answer18)
  How many kg of Basmati rice costing Rs.45/kg should a shopkeeper mix with 18kg of ordinary rice costing Rs.22/kg so that he can get a profit 20% of on selling the mixture at Rs.42/kg.
  A)
  20.5kg  done clear
  B)
  22.8kg done clear
  C)
  23.4kg  done clear
  D)
  24.6kg done clear
  E)
  None of these done clear
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• question_answer19)
  The ratio of two numbers is 3: 5. If their L.C.M. is 240, then find the sum of the numbers.
  A)
  128 done clear
  B)
  64 done clear
  C)
  212       done clear
  D)
  132 done clear
  E)
  None of these done clear
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• question_answer20)
  What must be added to the numbers 8, 14, 28 and 42 so that they are in proportion?
  A)
  3          done clear
  B)
  7 done clear
  C)
  9 done clear
  D)
  8 done clear
  E)
  None of these done clear
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• question_answer21)
  In an election out of 60000 eligible voters 38000 cast their votes. What was the percentage of people not casting their votes?
  A)
  36.67% done clear
  B)
  40% done clear
  C)
  63.67% done clear
  D)
  43% done clear
  E)
  None of these done clear
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• question_answer22)
  A man spends 88% of his annual income. If he saves Rs.4800 every month find his annual income.
  A)
  Rs. 480,000 done clear
  B)
  Rs.5, 20, 000 done clear
  C)
  Rs. 5, 40, 000 done clear
  D)
  Rs.3, 60, 000 done clear
  E)
  None of these done clear
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• question_answer23)
  If 16 can be a work in 16 days, then 4 men can be the same work in ________.
  A)
  32 days done clear
  B)
  16 days done clear
  C)
  48 days done clear
  D)
  64 days done clear
  E)
  None of these done clear
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• question_answer24)
  If Rajiv can type 480 letters in 6 minutes and Shivani can type 324 letters in 270 seconds, then both can type how many letters in 12 minutes?
  A)
  3240 done clear
  B)
  3600 done clear
  C)
  1824 done clear
  D)
  1600 done clear
  E)
  None of these done clear
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• question_answer25)
  If \[\mathbf{a}:\text{ }\mathbf{b}\text{ }=\text{ }\mathbf{3}\text{ }:\text{ }\mathbf{4}\text{ }\mathbf{and}\text{ }\mathbf{b}\text{ }:\text{ }\mathbf{c}\text{ }=\text{ }\mathbf{3}\text{ }:\text{ }\mathbf{4}\] then find the value of a: c.
  A)
  9 : 16 done clear
  B)
  3 : 16 done clear
  C)
  3 : 4 done clear
  D)
  4 : 3 done clear
  E)
  None of these done clear
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• question_answer26)
  If \[\mathbf{x:y=3:8}\], then find the value of \[\left( \mathbf{5x + 7y} \right)\mathbf{ : (8x+ 11y)}\],
  A)
  71 : 91 done clear
  B)
  71 : 14 done clear
  C)
  91 : 71  done clear
  D)
  14 : 71 done clear
  E)
  None of these done clear
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• question_answer27)
  If \[\frac{\mathbf{p}}{\mathbf{q}}\mathbf{=}\frac{\mathbf{m}}{\mathbf{n}}\mathbf{=}\frac{\mathbf{r}}{\mathbf{s}}\] then find the value of\[\frac{\mathbf{8p+2r+19m}}{\mathbf{8q+2s+19n}}\].
  A)
  \[\frac{p}{q}\] done clear
  B)
  \[\frac{m}{n}\] done clear
  C)
  \[\frac{r}{s}\]  done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer28)
  The price of a commodity is reduced to its\[\frac{\mathbf{7}}{\mathbf{9}}\mathbf{th}\]. What is the percentage reduction in the price?
  A)
  \[22.\overline{2}\] Rs. done clear
  B)
  \[21.\overline{4}\] done clear
  C)
  \[22.\overline{6~}\] done clear
  D)
  \[30.\overline{3}\] done clear
  E)
  None of these done clear
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• question_answer29)
  Find the interest on Rs.14500 at 18% per annum for a period of 3 and 4 months.
  A)
  Rs.8700 done clear
  B)
  Rs.9300 done clear
  C)
  Rs.9100 done clear
  D)
  Rs.8400 done clear
  E)
  None of these done clear
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• question_answer30)
  The compound interest on Rs.16000 in 2 years at 4% per annum, the interest being compounded half yearly, is _______.
  A)
  Rs.1318.91 done clear
  B)
  Rs.1228.87 done clear
  C)
  Rs.1428.26        done clear
  D)
  Rs.1348.56 done clear
  E)
  None of these done clear
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• question_answer31)
  A sum becomes Rs.6050 after two years and Rs.7320.50 after four years. The sum is _______.
  A)
  Rs.5000 done clear
  B)
  Rs.4500 done clear
  C)
  Rs.4800 done clear
  D)
  Rs.5500 done clear
  E)
  None of these done clear
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• question_answer32)
  If the difference between the compound interest and simple interest on a sum at 8% rate of interest per annum for three years is Rs.450, then the sum (in Rs.)is________.
  A)
  20,600 done clear
  B)
  21,500 done clear
  C)
  22,500  done clear
  D)
  24,540 done clear
  E)
  None of these        done clear
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• question_answer33)
                                          The simple interest on a certain sum for 3 years and 9 months at 15% per annum is Rs.1200 less than the simple interest on the same sum for 4 years and 8 months at 12% per annum. Find the sum (in Rs.).
  A)
  3, 60, 000 done clear
  B)
  4, 80, 000 done clear
  C)
  4, 20, 000  done clear
  D)
  4, 00, 000 done clear
  E)
  None of these done clear
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• question_answer34)
  Which among the following statements is correct?
  A)
  8 minutes are 15% of 1 hour. done clear
  B)
  15 of 1 day is 3hr and 36 minutes. done clear
  C)
  10 metres are 10% of 1 km. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer35)
  Compound interest compounded annually on a certain sum of money for 3 years at 8% per annum is Rs. 1688.128. Find the simple interest on the same sum for the same rate and same period.
  A)
  Rs. 1560 done clear
  B)
  Rs.1600 done clear
  C)
  Rs.1500 done clear
  D)
  Rs.1650 done clear
  E)
  None of these done clear
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• question_answer36)
  A shopkeeper gains 25% while buying an article 32% while selling them. His total gain is ...............
  A)
  56% done clear
  B)
  65%  done clear
  C)
  76%      done clear
  D)
  67% done clear
  E)
  None of these done clear
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• question_answer37)
  A man sells an article at a gain of 20%. If he had bought it at 20% less and sold it for Rs.240 less, he would have still gained 20%. What is the cost price of the article?
  A)
  Rs.860 done clear
  B)
  Rs.980 done clear
  C)
  Rs.1000 done clear
  D)
  Rs.1200 done clear
  E)
  None of these done clear
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• question_answer38)
  If M is increased by 30%, it equals M If N is decreased by 40%. It equals P. Then P is how many% of M
  A)
  76                     done clear
  B)
  78 done clear
  C)
  80 done clear
  D)
  82 done clear
  E)
  None of these done clear
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• question_answer39)
  A man purchases goods worth Rs.9000 and sold half of them at a gain of 15% at what gain percent must he sell the remainder to get a gain of 25% on whole?
  A)
  28% done clear
  B)
  128% done clear
  C)
  35% done clear
  D)
  135% done clear
  E)
  None of these done clear
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• question_answer40)
  If the selling price is doubled, the profit quadruples. Find the profit percent.
  A)
  125% done clear
  B)
  50% done clear
  C)
  75%      done clear
  D)
  100% done clear
  E)
  None of these done clear
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