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

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

A. 5:3:7

B. 6:4:6

C. 12:6:12

D. 6:3:6

Answer: Option D

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

This question belongs to: Maths Ratio and Proportion

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Question #1 Report Error

Milk and water are in ratio 5:6 in a 503 L mixture. Quantity of milk?

A. 272 L

B. 275 L

C. 456 L

D. 228 L

Correct Answer: Option D

Explanation:
Total parts = 11. Milk = [5 / (5+6)] × 503 = 228 L.

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

If a:b = 5:7 and b:c = 7:7, then a:b:c = ?

A. 5:8:7

B. 5:7:7

C. 4:7:8

D. 10:14:14

Correct Answer: Option B

Explanation:
Combine ratios: a:b = 5:7, b:c = 7:7 ⇒ a:b:c = 5:7:7.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

If a:b = 4:9 and b:c = 9:8, then a:b:c = ?

A. 3:9:9

B. 8:18:16

C. 4:10:8

D. 4:9:8

Correct Answer: Option D

Explanation:
Combine ratios: a:b = 4:9, b:c = 9:8 ⇒ a:b:c = 4:9:8.

This question belongs to: Maths Ratio and Proportion