If a:b = 6:6 and b:c = 6:7, then a:b:c = ? MCQ with Answer and Explanation

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

A. 5:6:8

B. 6:6:7

C. 6:7:7

D. 12:12:14

Answer: Option B

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

This question belongs to: Maths Ratio and Proportion

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Question #1 Report Error

Milk and water are in ratio 7:2 in a 578 L mixture. Quantity of milk?

A. 473 L

B. 129 L

C. 449 L

D. 898 L

Correct Answer: Option C

Explanation:
Total parts = 9. Milk = [7 / (7+2)] × 578 = 449 L.

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

If a:b = 2:6 and b:c = 6:12, then a:b:c = ?

A. 2:6:12

B. 1:6:13

C. 2:7:12

D. 4:12:24

Correct Answer: Option A

Explanation:
Combine ratios: a:b = 2:6, b:c = 6:12 ⇒ a:b:c = 2:6:12.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

Milk and water are in ratio 5:4 in a 536 L mixture. Quantity of milk?

A. 239 L

B. 297 L

C. 594 L

D. 329 L

Correct Answer: Option B

Explanation:
Total parts = 9. Milk = [5 / (5+4)] × 536 = 297 L.

This question belongs to: Maths Ratio and Proportion