Problems on Ages · Question 21 · Medium
The present ages of A and B are in the ratio 4 : 3. Six years ago, their ages were in the ratio 7 : 5. What is A's present age?
- 36 years
- 48 years
- 42 years
- 28 years
Answer and explanation
Answer: B. 48 years
Explanation: Let the ages be 4k and 3k. 5(4k − 6) = 7(3k − 6) gives 20k − 30 = 21k − 42, so k = 12. A = 48 years (six years ago 42 : 30 = 7 : 5).
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