If a:b = 5:5 and b:c = 5:12, then a:b:c = ? MCQ with Answer and Explanation

Question

Share Report Error

If a:b = 5:5 and b:c = 5:12, then a:b:c = ?

A. 10:10:24

B. 5:5:12

C. 5:6:12

D. 4:5:13

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 5:5, b:c = 5:12 ⇒ a:b:c = 5:5:12.

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

Share Report

Milk and water are in ratio 4:3 in a 255 L mixture. Quantity of milk?

A. 290 L

B. 110 L

C. 145 L

D. 191 L

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Total parts = 7. Milk = [4 / (4+3)] × 255 = 145 L.

This question belongs to: Maths Ratio and Proportion

Question #2

Share Report

Ratio of present ages of A and B is 7:5. After 12 years, the ratio becomes 8:8. Present age of A is?

A. 94 years

B. 196 years

C. 103 years

D. 98 years

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Let ages 7k and 5k. Then (7k + 12)/(5k + 12) = 8/8. Solving gives k ≈ 14, age of A = 7*14 = 98.

This question belongs to: Maths Ratio and Proportion

Question #3

Share Report

If a:b = 8:8 and b:c = 8:5, then a:b:c = ?

A. 8:9:5

B. 7:8:6

C. 16:16:10

D. 8:8:5

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Combine ratios: a:b = 8:8, b:c = 8:5 ⇒ a:b:c = 8:8:5.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs