If a:b = 6:7 and b:c = 7:4, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 6:7 and b:c = 7:4, then a:b:c = ?

A. 5:7:5

B. 12:14:8

C. 6:7:4

D. 6:8:4

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 6:7, b:c = 7:4 ⇒ a:b:c = 6:7:4.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 6:5 and b:c = 5:4, then a:b:c = ?

A. 6:5:4

B. 5:5:5

C. 6:6:4

D. 12:10:8

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 6:5, b:c = 5:4 ⇒ a:b:c = 6:5:4.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 2:8 and b:c = 8:11, then a:b:c = ?

A. 2:9:11

B. 4:16:22

C. 2:8:11

D. 1:8:12

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 2:8, b:c = 8:11 ⇒ a:b:c = 2:8:11.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:3 and b:c = 3:10, then a:b:c = ?

A. 3:3:11

B. 8:6:20

C. 4:3:10

D. 4:4:10

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 4:3, b:c = 3:10 ⇒ a:b:c = 4:3:10.

This question belongs to: Maths Ratio and Proportion

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