The ratio of ages of A and B is 5:4 at present. After 12 years the ratio of their ages will be 13:11.…
Write the current ages as 5k and 4k. The future ratio gives 11(5k + 12) = 13(4k + 12), so k = 8 and the present age of A is 40 years.
Choose your answer
The ratio of ages of A and B is 5:4 at present. After 12 years the ratio of their ages will be 13:11. What is the present age of A?
Answer and explanation
Correct answer A
Write the current ages as 5k and 4k. The future ratio gives 11(5k + 12) = 13(4k + 12), so k = 8 and the present age of A is 40 years.
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Jammu & Kashmir Prosecuting Officer