If a:b = 6:3 and b:c = 3:12, then a:b:c = ? MCQ with Answer and Explanation

If a:b = 6:3 and b:c = 3:12, then a:b:c = ?

A. 5:3:13

B. 12:6:24

C. 6:4:12

D. 6:3:12

Answer: Option D

Combine ratios: a:b = 6:3, b:c = 3:12 ⇒ a:b:c = 6:3:12.

This question belongs to: Maths Ratio and Proportion

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Question #1 Report Error

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

A. 223 L

B. 116 L

C. 173 L

D. 346 L

Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

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

A. 5:10:7

B. 6:11:6

C. 6:10:6

D. 12:20:12

Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

If a:b = 4:7 and b:c = 7:8, then a:b:c = ?

A. 8:14:16

B. 4:7:8

C. 3:7:9

D. 4:8:8

Correct Answer: Option B

Explanation:
Combine ratios: a:b = 4:7, b:c = 7:8 ⇒ a:b:c = 4:7:8.

This question belongs to: Maths Ratio and Proportion