Question

A father us 3 times as old his son .After 15 years he will be twice a as old his son what are their present age​

Answer 1

Let son's age be x.

Therefore father's age will be 3x.

According to the question,

$3x + 15 =2 (x + 15) \\ 3x + 15 = 2x + 30 \\ x = 15$

Therefore, son's present age is 15 and father's age is 45.

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