If a:b = 5:5 and b:c = 5:6, then a:b:c = ? MCQ with Answer and Explanation

If a:b = 5:5 and b:c = 5:6, then a:b:c = ?

A. 5:6:6

B. 5:5:6

C. 4:5:7

D. 10:10:12

Answer: Option B

Combine ratios: a:b = 5:5, b:c = 5:6 ⇒ a:b:c = 5:5:6.

This question belongs to: Maths Ratio and Proportion

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Question #1 Report Error

Milk and water are in ratio 9:2 in a 345 L mixture. Quantity of milk?

A. 282 L

B. 303 L

C. 63 L

D. 564 L

Correct Answer: Option A

Explanation:
Total parts = 11. Milk = [9 / (9+2)] × 345 = 282 L.

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

Milk and water are in ratio 4:3 in a 173 L mixture. Quantity of milk?

A. 98 L

B. 196 L

C. 75 L

D. 140 L

Correct Answer: Option A

Explanation:
Total parts = 7. Milk = [4 / (4+3)] × 173 = 98 L.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

Two numbers are in the ratio 12:10 and their sum is 753. Find the numbers.

A. 396 and 345

B. 429 and 320

C. 408 and 340

D. 816 and 680

Correct Answer: Option C

Explanation:
Numbers = 12k and 10k. 12k + 10k = 753 ⇒ k = 34. Thus, numbers are 408 and 340.

This question belongs to: Maths Ratio and Proportion