20% of A = 30% of B = 1/6 of C. Ratio A:B:C: MCQ with Answer and Explanation

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20% of A = 30% of B = 1/6 of C. Ratio A:B:C:

A. 15:10:12

B. 10:15:18

C. 15:10:18

D. 18:10:15

Answer: Option C

Solution (By JKSSB Mock Tests)

Let 20%A=30%B=C/6 = k. A=5k, B=10k/3, C=6k → multiply by 3: 15:10:18.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

In a class of 40, 30% are girls. Number of boys is:

A. 26

B. 28

C. 32

D. 30

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Correct Answer: Option B

Explanation:
70% of 40 = 28 boys.

This question belongs to: Maths Percentage

Question #2

The population of a town increases by 10% in the first year and decreases by 10% in the second year. If the present population is 19800, what was it 2 years ago?

A. 18000

B. 19000

C. 21000

D. 20000

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Correct Answer: Option D

Explanation:
Present = original × 1.1 × 0.9 = 0.99 original. So original = 19800/0.99 = 20000.

This question belongs to: Maths Percentage

Question #3

Fresh fruit has 72% water, dry fruit 25% water. Dry fruit from 120 kg fresh fruit:

A. 50 kg

B. 42 kg

C. 48 kg

D. 44.8 kg

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Correct Answer: Option D

Explanation:
Dry matter in fresh = 28% of 120 = 33.6 kg, in dry fruit 75% is dry matter, weight = 33.6/0.75 = 44.8 kg.

This question belongs to: Maths Percentage

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