If a:b = 3:4 and b:c = 4:11, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 3:4 and b:c = 4:11, then a:b:c = ?

A. 6:8:22

B. 3:4:11

C. 2:4:12

D. 3:5:11

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 3:4, b:c = 4:11 ⇒ a:b:c = 3:4:11.

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 36 and 21.

A. 30

B. 54

C. 27

D. 57

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Correct Answer: Option C

Explanation:
Mean proportional = √(36 × 21) = √(756) = 27.

This question belongs to: Maths Ratio and Proportion

Question #2

Milk and water are in ratio 5:2 in a 305 L mixture. Quantity of milk?

A. 88 L

B. 434 L

C. 265 L

D. 217 L

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Correct Answer: Option D

Explanation:
Total parts = 7. Milk = [5 / (5+2)] × 305 = 217 L.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 5:10 and b:c = 10:4, then a:b:c = ?

A. 5:11:4

B. 5:10:4

C. 10:20:8

D. 4:10:5

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 5:10, b:c = 10:4 ⇒ a:b:c = 5:10:4.

This question belongs to: Maths Ratio and Proportion

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