If a:b = 3:10 and b:c = 10:11, then a:b:c = ? MCQ with Answer and Explanation

Question

Share Report Error

If a:b = 3:10 and b:c = 10:11, then a:b:c = ?

A. 3:11:11

B. 2:10:12

C. 3:10:11

D. 6:20:22

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 3:10, b:c = 10:11 ⇒ a:b:c = 3:10:11.

This question belongs to: Maths Ratio and Proportion

Request complete Subject PDF

Discuss this Question (0)

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

Practice More Ratio and Proportion Questions

Question #1

Milk and water are in ratio 9:7 in a 533 L mixture. Quantity of milk?

A. 299 L

B. 234 L

C. 598 L

D. 336 L

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Total parts = 16. Milk = [9 / (9+7)] × 533 = 299 L.

This question belongs to: Maths Ratio and Proportion

Question #2

Ratio of present ages of A and B is 3:8. After 12 years, the ratio becomes 4:11. Present age of A is?

A. 138 years

B. 74 years

C. 65 years

D. 69 years

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Let ages 3k and 8k. Then (3k + 12)/(8k + 12) = 4/11. Solving gives k ≈ 23, age of A = 3*23 = 69.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 3:3 and b:c = 3:5, then a:b:c = ?

A. 3:3:5

B. 3:4:5

C. 2:3:6

D. 6:6:10

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Combine ratios: a:b = 3:3, b:c = 3:5 ⇒ a:b:c = 3:3:5.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs