Question

After $12$ years, Kanwar shall be $3$ times as old as I was $4$ years ago. Find my present age.

Answer 1

Let the present age of the person be $xyears$.

Therefore,

$4years$ ago his age will be $(x-4)years$.

$12years$ after his age will be $(x+12)years$.

According to the question,

$3(x-4)=x+12$

$3x-12=x+12$

$2x=24$

$x=12$

Therefore, the present age of the person is $12years$.