If a:b = 3:6 and b:c = 6:12, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 3:6 and b:c = 6:12, then a:b:c = ?

A. 6:12:24

B. 3:7:12

C. 3:6:12

D. 2:6:13

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 3:6, b:c = 6:12 ⇒ a:b:c = 3:6:12.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 7:10 and b:c = 10:12, then a:b:c = ?

A. 7:11:12

B. 7:10:12

C. 14:20:24

D. 6:10:13

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 7:10, b:c = 10:12 ⇒ a:b:c = 7:10:12.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 7:10 and b:c = 10:9, then a:b:c = ?

A. 7:10:9

B. 7:11:9

C. 14:20:18

D. 6:10:10

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 7:10, b:c = 10:9 ⇒ a:b:c = 7:10:9.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:5 and b:c = 5:4, then a:b:c = ?

A. 4:6:4

B. 3:5:5

C. 8:10:8

D. 4:5:4

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 4:5, b:c = 5:4 ⇒ a:b:c = 4:5:4.

This question belongs to: Maths Ratio and Proportion

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