If a:b = 6:8 and b:c = 8:6, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 6:8 and b:c = 8:6, then a:b:c = ?

A. 12:16:12

B. 6:9:6

C. 6:8:6

D. 5:8:7

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 6:8, b:c = 8:6 ⇒ a:b:c = 6:8:6.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 8:8 and b:c = 8:5, then a:b:c = ?

A. 8:8:5

B. 7:8:6

C. 16:16:10

D. 8:9:5

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 8:8, b:c = 8:5 ⇒ a:b:c = 8:8:5.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in ratio 12:7. Their difference is 51. What is their sum?

A. 228

B. 456

C. 504

D. 596

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Correct Answer: Option B

Explanation:
Numbers 12k, 7k. Difference |12-7|k = 51 ⇒ k = 10. Sum = (12+7)k ≈ 456.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 2:4 and b:c = 4:6, then a:b:c = ?

A. 1:4:7

B. 2:4:6

C. 4:8:12

D. 2:5:6

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 2:4, b:c = 4:6 ⇒ a:b:c = 2:4:6.

This question belongs to: Maths Ratio and Proportion

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