Ratio of present ages of A and B is 6:5. After 5 years, the ratio becomes 7:6. Present age of A is? MCQ with Answer and Explanation

Question

Share Report Error

Ratio of present ages of A and B is 6:5. After 5 years, the ratio becomes 7:6. Present age of A is?

A. 108 years

B. 54 years

C. 59 years

D. 48 years

Answer: Option B

Solution (By JKSSB Mock Tests)

Let ages 6k and 5k. Then (6k + 5)/(5k + 5) = 7/6. Solving gives k ≈ 9, age of A = 6*9 = 54.

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

If a:b = 4:5 and b:c = 5:11, then a:b:c = ?

A. 8:10:22

B. 3:5:12

C. 4:6:11

D. 4:5:11

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Combine ratios: a:b = 4:5, b:c = 5:11 ⇒ a:b:c = 4:5:11.

This question belongs to: Maths Ratio and Proportion

Question #2

Find the mean proportional between 20 and 74.

A. 94

B. 41

C. 76

D. 38

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Mean proportional = √(20 × 74) = √(1480) = 38.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 5:8 and b:c = 8:12, then a:b:c = ?

A. 4:8:13

B. 10:16:24

C. 5:8:12

D. 5:9:12

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Combine ratios: a:b = 5:8, b:c = 8:12 ⇒ a:b:c = 5:8:12.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs