If a:b = 8:6 and b:c = 6:12, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 8:6 and b:c = 6:12, then a:b:c = ?

A. 8:6:12

B. 16:12:24

C. 7:6:13

D. 8:7:12

Answer: Option A

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 8:6, b:c = 6:12 ⇒ a:b:c = 8:6:12.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 7:8 and b:c = 8:12, then a:b:c = ?

A. 6:8:13

B. 7:9:12

C. 7:8:12

D. 14:16:24

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 7:8, b:c = 8:12 ⇒ a:b:c = 7:8:12.

This question belongs to: Maths Ratio and Proportion

Question #2

Milk and water are in ratio 6:4 in a 289 L mixture. Quantity of milk?

A. 116 L

B. 346 L

C. 173 L

D. 223 L

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Correct Answer: Option C

Explanation:
Total parts = 10. Milk = [6 / (6+4)] × 289 = 173 L.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 6:7 and b:c = 7:10, then a:b:c = ?

A. 5:7:11

B. 6:8:10

C. 6:7:10

D. 12:14:20

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 6:7, b:c = 7:10 ⇒ a:b:c = 6:7:10.

This question belongs to: Maths Ratio and Proportion

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