If a:b = 2:7 and b:c = 7:6, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 2:7 and b:c = 7:6, then a:b:c = ?

A. 1:7:7

B. 4:14:12

C. 2:7:6

D. 2:8:6

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 2:7, b:c = 7:6 ⇒ a:b:c = 2:7:6.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

Find the mean proportional between 34 and 17.

A. 51

B. 24

C. 48

D. 27

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Correct Answer: Option B

Explanation:
Mean proportional = √(34 × 17) = √(578) = 24.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in ratio 5:9. Their difference is 44. What is their sum?

A. 476

B. 505

C. 238

D. 619

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Correct Answer: Option A

Explanation:
Numbers 5k, 9k. Difference |5-9|k = 44 ⇒ k = 11. Sum = (5+9)k ≈ 476.

This question belongs to: Maths Ratio and Proportion

Question #3

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

A. 4:5:9

B. 8:8:18

C. 4:4:9

D. 3:4:10

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Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion

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