If a:b = 5:3 and b:c = 3:4, then a:b:c = ? MCQ with Answer and Explanation

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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

Answer: Option D

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 4:9 and b:c = 9:8, then a:b:c = ?

A. 3:9:9

B. 8:18:16

C. 4:9:8

D. 4:10:8

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 4:9, b:c = 9:8 ⇒ a:b:c = 4:9:8.

This question belongs to: Maths Ratio and Proportion

Question #2

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

A. 3:3:5

B. 3:4:5

C. 6:6:10

D. 2:3:6

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Correct Answer: Option A

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

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 2:7 and b:c = 7:9, then a:b:c = ?

A. 4:14:18

B. 2:7:9

C. 1:7:10

D. 2:8:9

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 2:7, b:c = 7:9 ⇒ a:b:c = 2:7:9.

This question belongs to: Maths Ratio and Proportion

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