Question

Fifteen years from now Ravi's age will be four time his present age. What is Ravi's present age?

Answer 1

Let suppose Ravi's age be x
!5 years from now his age will be x+15
It is given in the question that after 15 years will become 4x
So the equation goes like this,
x+15=4x
4x-x=15
3x=15
x=15/3=5
You can verify the answer by inserting the values

Answer 2

ravi's age = xyrs.
fifteen years later = (x+15)
4x=x+15
3x=15
x=5

therefore ravi's present age is 5 years.