If a:b = 6:5 and b:c = 5:6, then a:b:c = ? MCQ with Answer and Explanation

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

A. 5:5:7

B. 12:10:12

C. 6:6:6

D. 6:5:6

Answer: Option D

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 6:5 and b:c = 5:11, then a:b:c = ?

A. 5:5:12

B. 6:5:11

C. 12:10:22

D. 6:6:11

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 6:5, b:c = 5:11 ⇒ a:b:c = 6:5:11.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 5:6 and b:c = 6:7, then a:b:c = ?

A. 5:7:7

B. 5:6:7

C. 4:6:8

D. 10:12:14

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 5:6, b:c = 6:7 ⇒ a:b:c = 5:6:7.

This question belongs to: Maths Ratio and Proportion

Question #3

Two numbers are in ratio 7:12. Their difference is 101. What is their sum?

A. 334

B. 152

C. 304

D. 423

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Correct Answer: Option C

Explanation:
Numbers 7k, 12k. Difference |7-12|k = 101 ⇒ k = 20. Sum = (7+12)k ≈ 304.

This question belongs to: Maths Ratio and Proportion

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