If a:b = 8:3 and b:c = 3:4, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 8:3 and b:c = 3:4, then a:b:c = ?

A. 8:3:4

B. 8:4:4

C. 16:6:8

D. 7:3:5

Answer: Option A

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 8:3, b:c = 3:4 ⇒ a:b:c = 8:3:4.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 8:10 and b:c = 10:6, then a:b:c = ?

A. 7:10:7

B. 16:20:12

C. 8:11:6

D. 8:10:6

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 8:10, b:c = 10:6 ⇒ a:b:c = 8:10:6.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 7:5 and b:c = 5:5, then a:b:c = ?

A. 7:6:5

B. 6:5:6

C. 14:10:10

D. 7:5:5

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 7:5, b:c = 5:5 ⇒ a:b:c = 7:5:5.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 6:10 and b:c = 10:8, then a:b:c = ?

A. 6:11:8

B. 6:10:8

C. 5:10:9

D. 12:20:16

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 6:10, b:c = 10:8 ⇒ a:b:c = 6:10:8.

This question belongs to: Maths Ratio and Proportion

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