If a:b = 4:8 and b:c = 8:7, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 4:8 and b:c = 8:7, then a:b:c = ?

A. 3:8:8

B. 4:8:7

C. 4:9:7

D. 8:16:14

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 4:8, b:c = 8:7 ⇒ a:b:c = 4:8:7.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 2:4 and b:c = 4:8, then a:b:c = ?

A. 2:4:8

B. 4:8:16

C. 2:5:8

D. 1:4:9

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 2:4, b:c = 4:8 ⇒ a:b:c = 2:4:8.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 5:5 and b:c = 5:12, then a:b:c = ?

A. 4:5:13

B. 5:5:12

C. 5:6:12

D. 10:10:24

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 5:5, b:c = 5:12 ⇒ a:b:c = 5:5:12.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:6 and b:c = 6:6, then a:b:c = ?

A. 4:6:6

B. 8:12:12

C. 4:7:6

D. 3:6:7

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 4:6, b:c = 6:6 ⇒ a:b:c = 4:6:6.

This question belongs to: Maths Ratio and Proportion

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