If a:b = 8:4 and b:c = 4:6, then a:b:c = ? MCQ with Answer and Explanation

If a:b = 8:4 and b:c = 4:6, then a:b:c = ?

A. 16:8:12

B. 7:4:7

C. 8:4:6

D. 8:5:6

Answer: Option C

Combine ratios: a:b = 8:4, b:c = 4:6 ⇒ a:b:c = 8:4:6.

This question belongs to: Maths Ratio and Proportion

No comments yet. Be the first to start the discussion!

Question #1 Report Error

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

A. 456 L

B. 228 L

C. 275 L

D. 272 L

Correct Answer: Option B

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

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

Milk and water are in ratio 4:2 in a 445 L mixture. Quantity of milk?

A. 346 L

B. 149 L

C. 296 L

D. 592 L

Correct Answer: Option C

Explanation:
Total parts = 6. Milk = [4 / (4+2)] × 445 = 296 L.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

If a:b = 2:8 and b:c = 8:4, then a:b:c = ?

A. 2:9:4

B. 4:16:8

C. 1:8:5

D. 2:8:4

Correct Answer: Option D

Explanation:
Combine ratios: a:b = 2:8, b:c = 8:4 ⇒ a:b:c = 2:8:4.

This question belongs to: Maths Ratio and Proportion