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. 2:8:6

B. 2:7:6

C. 4:14:12

D. 1:7:7

Answer: Option B

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

If a:b = 4:9 and b:c = 9:10, then a:b:c = ?

A. 4:10:10

B. 4:9:10

C. 8:18:20

D. 3:9:11

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 4:9, b:c = 9:10 ⇒ a:b:c = 4:9:10.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in ratio 7:12. Their difference is 121. What is their sum?

A. 218

B. 95

C. 190

D. 326

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Correct Answer: Option C

Explanation:
Numbers 7k, 12k. Difference |7-12|k = 121 ⇒ k = 24. Sum = (7+12)k ≈ 190.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 3:7 and b:c = 7:11, then a:b:c = ?

A. 3:8:11

B. 2:7:12

C. 6:14:22

D. 3:7:11

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 3:7, b:c = 7:11 ⇒ a:b:c = 3:7:11.

This question belongs to: Maths Ratio and Proportion

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