Question

Fifteen years from now ravi age will be four times age what is ravi age

Answer 1

let,
ravi's age = x
after 15 years , ravi's age = 15 + x
four times ravi's age = 4x
according to the question,
15+x = 4x
15 = 4x-x
15 = 3x
x = 5
therefore,ravi's age = 5

Answer 2

Let The Age Of Ravi = x
After 15 years Ravi Will Be = 15 + x
4 Times Age Of Ravi = 4 * x = 4x.
15 + x = 4x
15 = 4x-x
15 = 3x
x = 5
∴ Ravi's age = 5 Years.                 Answer....................