If a:b = 4:4 and b:c = 4:8, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 4:4 and b:c = 4:8, then a:b:c = ?

A. 8:8:16

B. 4:4:8

C. 4:5:8

D. 3:4:9

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 4:4, b:c = 4:8 ⇒ a:b:c = 4:4:8.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 2:9 and b:c = 9:7, then a:b:c = ?

A. 2:10:7

B. 1:9:8

C. 4:18:14

D. 2:9:7

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 2:9, b:c = 9:7 ⇒ a:b:c = 2:9:7.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in ratio 9:11. Their difference is 54. What is their sum?

A. 383

B. 130

C. 316

D. 260

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Correct Answer: Option D

Explanation:
Numbers 9k, 11k. Difference |9-11|k = 54 ⇒ k = 27. Sum = (9+11)k ≈ 260.

This question belongs to: Maths Ratio and Proportion

Question #3

Milk and water are in ratio 8:2 in a 253 L mixture. Quantity of milk?

A. 51 L

B. 202 L

C. 245 L

D. 404 L

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Correct Answer: Option B

Explanation:
Total parts = 10. Milk = [8 / (8+2)] × 253 = 202 L.

This question belongs to: Maths Ratio and Proportion

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