Question

A number exceeds its one – fifth by 20. Find the number.

Answer 1

let the number be = x
its one fifth will be=x/5
According to question=........
x-x/5=20
4x/5=20
x/5=5
x=25
the required no. will be 25

Answer 2

Let the number be X
One fifth of the number=X/5
ATQ,
X=20+X/5
X-X/5=20
(5X-X)/5=20
4X/5=20
X=20*5/4
X=25