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

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

A. 3:4:9

B. 4:5:8

C. 8:8:16

D. 4:4:8

Answer: Option D

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

This question belongs to: Maths Ratio and Proportion

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

Question #1 Report Error

Two numbers are in the ratio 7:4 and their sum is 257. Find the numbers.

A. 176 and 65

B. 143 and 110

C. 322 and 184

D. 161 and 92

Correct Answer: Option D

Explanation:
Numbers = 7k and 4k. 7k + 4k = 257 ⇒ k = 23. Thus, numbers are 161 and 92.

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

Milk and water are in ratio 9:6 in a 433 L mixture. Quantity of milk?

A. 518 L

B. 259 L

C. 286 L

D. 174 L

Correct Answer: Option B

Explanation:
Total parts = 15. Milk = [9 / (9+6)] × 433 = 259 L.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

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

A. 16:8:8

B. 8:5:4

C. 8:4:4

D. 7:4:5

Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion