Answers

2015-06-18T18:58:38+05:30
Let the present age of Ravi be x 
after fifteen years his age will be 4 times of his present age
 ⇒ 4x = x+15
⇒4x-x = 15
⇒3x=15
⇒x=15/3=5
Therefore , present age of Ravi (x) = 5 ..
5 2 5