If 6 men and 3 boys working together, can do four | Ratios and Proportions Questions & Answers

Q:

If (3/2)X = (5/7)Y = (6/5)Z, then what is X : Y : Z?

A) 105 : 50 : 84	B) 24 : 25 : 32
C) 15 : 21 : 25	D) 20 : 42 : 25

Answer & Explanation Answer: D) 20 : 42 : 25

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21 56996

Q:

If 3A = 2B = C, then A : B : C = ?

A) 6 : 2 : 3	B) 1/3 : 1/2 : 1
C) 3 : 2 : 1	D) 1 : 3 : 2

Answer & Explanation Answer: B) 1/3 : 1/2 : 1

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19 5995

Q:

The ratio of the number of marbles that Pulak and Menaja had was 5:9 while the ratio of the number of marbles that Jairam and Menaja had was 7:18. What is the ratio of the number of marbles that Pulak and Jairam had?

A) 10:7	B) 2:3
C) 5:7	D) 7:5

Answer & Explanation Answer: A) 10:7

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11 5489

Q:

Two numbers are in ratio 3:4. When 3 is subtracted from both the numbers, the ratio becomes 2:3. Find the sum of the numbers.

A) 16	B) 20
C) 21	D) 22

Answer & Explanation Answer: C) 21

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17 5390

Q:

If 3/5 of x is equal to 4/9 of y, then what is the ratio of x and y?

A) 11 : 15	B) 15 : 23
C) 20 : 27	D) 14 : 25

Answer & Explanation Answer: D) 14 : 25

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15 56638

Q:

If p : q : r = 2 : 3 : 5, then what will be the ratio of (p + q + r) : (3p + q – r)?

A) 5 : 2	B) 10 : 17
C) 9 : 4	D) 5 : 4

Answer & Explanation Answer: A) 5 : 2

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10 40830

Q:

Three triangles are marked out of a bigger triangle at the three vertices such that each side of each of the smaller triangles is one-third as long as each corresponding side of the bigger triangle. The ratio of the area of the three small triangles taken together to that of the rest of the bigger triangle is ?

A) 1:2	B) 1:3
C) 3:1	D) 1:9

Answer & Explanation Answer: A) 1:2

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10 5611

Q:

If w : 0.80 :: 9 : 6, w = ?

A) 2.5	B) 1.1
C) 3.3	D) 1.2

A) 1 : 2	B) 2 : 1
C) 3 : 1	D) 1 : 3

If 6 men and 3 boys working together, can do four times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time ?

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