If a:b = 8:8 and b:c = 8:10, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 8:8 and b:c = 8:10, then a:b:c = ?

A. 8:8:10

B. 7:8:11

C. 16:16:20

D. 8:9:10

Answer: Option A

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 8:8, b:c = 8:10 ⇒ a:b:c = 8:8:10.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 4:3 and b:c = 3:7, then a:b:c = ?

A. 4:4:7

B. 4:3:7

C. 3:3:8

D. 8:6:14

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 4:3, b:c = 3:7 ⇒ a:b:c = 4:3:7.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 5:3 and b:c = 3:4, then a:b:c = ?

A. 5:3:4

B. 4:3:5

C. 5:4:4

D. 10:6:8

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 5:3, b:c = 3:4 ⇒ a:b:c = 5:3:4.

This question belongs to: Maths Ratio and Proportion

Question #3

Find the mean proportional between 18 and 55.

A. 62

B. 31

C. 73

D. 34

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Correct Answer: Option B

Explanation:
Mean proportional = √(18 × 55) = √(990) = 31.

This question belongs to: Maths Ratio and Proportion

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