If a:b = 2:10 and b:c = 10:12, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 2:10 and b:c = 10:12, then a:b:c = ?

A. 2:11:12

B. 1:10:13

C. 2:10:12

D. 4:20:24

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 2:10, b:c = 10:12 ⇒ a:b:c = 2:10:12.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 5:3 and b:c = 3:4, then a:b:c = ?

A. 4:3:5

B. 10:6:8

C. 5:4:4

D. 5:3:4

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 5:3, b:c = 3:4 ⇒ a:b:c = 5:3:4.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 4:9 and b:c = 9:10, then a:b:c = ?

A. 3:9:11

B. 4:10:10

C. 4:9:10

D. 8:18:20

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 4:9, b:c = 9:10 ⇒ a:b:c = 4:9:10.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:8 and b:c = 8:8, then a:b:c = ?

A. 3:8:9

B. 4:8:8

C. 4:9:8

D. 8:16:16

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 4:8, b:c = 8:8 ⇒ a:b:c = 4:8:8.

This question belongs to: Maths Ratio and Proportion

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