question_answer1) If x : y = 2 : 3 and 2 : x = 1 : 2, then the value of y is __.
A) \[\frac{1}{3}\] done clear
B) \[\frac{3}{2}\] done clear
C) \[6\] done clear
D) \[\frac{1}{2}\] done clear
View Solution play_arrowquestion_answer2) If x and y vary inversely as each other. and x = 10 when y = 6. Find y when x= 15,
A) 3 done clear
B) 4 done clear
C) 2 done clear
D) 6 done clear
View Solution play_arrowA) 4 done clear
B) 9 done clear
C) 12 done clear
D) 36 done clear
View Solution play_arrowA) 1.25 done clear
B) 1.5 done clear
C) 25 done clear
D) 2.25 done clear
View Solution play_arrowA) 4 and 9 done clear
B) 10 and 3.6 done clear
C) 72 and 0.5 done clear
D) 5 and 6 done clear
View Solution play_arrowquestion_answer6) Which of the following statements is CORRECT?
A) Length of a side of square and its area vary directly with each other. done clear
B) If one angle of a triangle is kept fixed then the measure of the remaining two angles vary inversely with each other. done clear
C) The area of circle and its diameter vary directly with each other. done clear
D) All of these done clear
View Solution play_arrowquestion_answer7) If A : B = 1: 3 and B : C = 4 : 5, then C : A is equal to __.
A) 15 : 8 done clear
B) 12 ; 10 done clear
C) 8 : 5 done clear
D) 8 : 15 done clear
View Solution play_arrowquestion_answer8) Match the following.
Column - I | Column - II |
P. \[x\] and \[y\] are in direct proportion and \[x=40\] when \[y=120\]. If \[x=60\] then \[y=\] | (i) 160 |
Q. \[x\] varies inversely as \[y\] and \[x=12\] when \[y=300\], if \[x=24\] then \[y=\] | (ii) 180 |
R. \[x\] varies directly as \[y\] and \[y=50\] when \[x=30\], if \[x=96\] then \[y=\] | (iii) 130 |
S. \[x\] varies inversely as \[y\] and \[y=650\] when \[x=20\], if \[x=100\] then \[y=\] | (iv) 150 |
A) P\[\to \](iv); Q\[\to \](i); R\[\to \](iii); S\[\to \](ii) done clear
B) P\[\to \](ii); Q\[\to \](iv); R(i); S(iii) done clear
C) P\[\to \](iv); Q\[\to \](i); R\[\to \](iii); S\[\to \](ii) done clear
D) P\[\to \](ii); Q\[\to \](iv); R\[\to \](i); S\[\to \](iii) done clear
View Solution play_arrowquestion_answer9) When x=2, 7, 11.....,y = 8, 28, 44, ...., then x and y are in ............ .
A) Direct proportion done clear
B) Inverse proportion done clear
C) Neither direct nor inverse proportion done clear
D) None of these done clear
View Solution play_arrowquestion_answer10) Two quantities x and y vary inversely with each other, then ____ .
A) \[\frac{x}{y}\] remains constant done clear
B) \[x-y\] remains constant done clear
C) \[x+y\] remains constant done clear
D) \[x\times y\] remains constant done clear
View Solution play_arrowquestion_answer11) .. 8 men can do a piece of work in 10 days. How long will 10 men take?
A) 12 days done clear
B) 8 days done clear
C) 7 days done clear
D) 6 days done clear
View Solution play_arrowA) Rs. 7.30 done clear
B) Rs. 7.00 done clear
C) Rs. 6.00 done clear
D) Rs. 6.30 done clear
View Solution play_arrowA) 18 done clear
B) 24 done clear
C) 30 done clear
D) 12 done clear
View Solution play_arrowA) 30 done clear
B) 35 done clear
C) 65 done clear
D) 45 done clear
View Solution play_arrowA) 40 done clear
B) 30 done clear
C) 50 done clear
D) 20 done clear
View Solution play_arrowA) 29 done clear
B) 35 done clear
C) 60 done clear
D) 40 done clear
View Solution play_arrowA) \[2\times {{10}^{-4}}cm\] done clear
B) \[{{10}^{3}}cm\] done clear
C) \[{{10}^{-4}}cm\] done clear
D) \[{{10}^{4}}\text{ }cm\] done clear
View Solution play_arrowA) 180 done clear
B) 200 done clear
C) 150 done clear
D) 100 done clear
View Solution play_arrowA) 20 minutes done clear
B) 10 minutes done clear
C) 15 minutes done clear
D) 5 minutes done clear
View Solution play_arrowA) 50 done clear
B) 40 done clear
C) 60 done clear
D) 100 done clear
View Solution play_arrowquestion_answer21) State ?T? for true and ?F? for false.
(i) If x and y are in direct proportion, then (x-1) and (y-1) are also in direct proportion. |
(ii) If x and y are in inverse proportion then (x+2) and (y+2) are also in inverse proportion. |
(iii) Two quantities x and y are said to vary directly with each other if \[\frac{x}{y}=k\], where k is a positive constant. |
(iv) When distance is kept fixed, then speed and time vary inversely with each other. |
A)
(i) | (ii) | (iii) | (iv) |
T | F | F | T |
B)
(i) | (ii) | (iii) | (iv) |
T | T | F | F |
C)
(i) | (ii) | (iii) | (iv) |
F | F | T | T |
D)
(i) | (ii) | (iii) | (iv) |
T | F | T | F |
question_answer22) Fill in the blanks.
(i) The perimeter of circle and its diameter vary P with each other. |
(ii) if two quantities p and q vary inversely with each other then Q of their corresponding values remain constant. |
(iii) When x and y are in indirect proportion and if y doubles then x becomes R . |
A)
P | Q | R |
Inversely | Ratio | Double |
B)
P | Q | R |
Directly | Product | Half |
C)
P | Q | R |
Directly | Product | Half |
D)
P | Q | R |
Directly | Product | Half |
question_answer23) Match the following.
Column - I | Column - II |
(P) If the cost of 93m of a certain kind of plastic sheet is Rs. 1395, then what would it cost (in Rs.) to buy 105 m of such plastic sheet? | (1) 42 |
(Q) 55 cows can graze a field in 16 days. How many cows will graze the same field in 10 days? | (2) 18 |
(R) 18 men can reap a field in 35 days. For reaping the same field in 15 days; how many men are required? | (3) 88 |
(S) Suneeta types 1080 words in one hour. What is her GWPM (gross words per minute)? | (4) 1575 |
A)
P | Q | R | S |
4 | 3 | 1 | 2 |
B)
P | Q | R | S |
2 | 1 | 4 | 3 |
C)
P | Q | R | S |
3 | 2 | 1 | 4 |
D)
P | Q | R | S |
1 | 3 | 2 | 4 |
question_answer24) A worker is paid Rs. 139.20 for 3 days.
(i) What will he get in the month of June (in Rs,)? |
(ii) For how many days will he be working for Rs. 696? |
A)
(i) | (ii) |
1392 | 15 |
B)
(i) | (ii) |
15 | 1392 |
C)
(i) | (ii) |
1382 | 20 |
D)
(i) | (ii) |
1392 | 20 |
question_answer25) Which of the following tables shows the inverse proportion?
(i) | x | 6 | 12 | 30 | 48 |
y | 250 | 125 | 50 | 31.25 | |
(ii) | x | 115 | 130 | 145 | 160 |
y | 615 | 600 | 585 | 570 | |
(iii) | x | 50 | 100 | 300 | 1200 |
y | 300 | 150 | 100 | 75 |
A) Only (i) done clear
B) Both (i) and (ii) done clear
C) Both (ii) and (iii) done clear
D) None of these done clear
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