If a:b = 4:10 and b:c = 10:6, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 4:10 and b:c = 10:6, then a:b:c = ?

A. 4:10:6

B. 4:11:6

C. 3:10:7

D. 8:20:12

Answer: Option A

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 4:10, b:c = 10:6 ⇒ a:b:c = 4:10:6.

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 32 and 50.

A. 82

B. 43

C. 40

D. 80

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Correct Answer: Option C

Explanation:
Mean proportional = √(32 × 50) = √(1600) = 40.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in the ratio 8:14 and their sum is 276. Find the numbers.

A. 125 and 139

B. 192 and 336

C. 84 and 185

D. 96 and 168

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Correct Answer: Option D

Explanation:
Numbers = 8k and 14k. 8k + 14k = 276 ⇒ k = 12. Thus, numbers are 96 and 168.

This question belongs to: Maths Ratio and Proportion

Question #3

Milk and water are in ratio 4:2 in a 368 L mixture. Quantity of milk?

A. 273 L

B. 245 L

C. 490 L

D. 123 L

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Correct Answer: Option B

Explanation:
Total parts = 6. Milk = [4 / (4+2)] × 368 = 245 L.

This question belongs to: Maths Ratio and Proportion

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