Question

A number is increased by 20percent and then decreased by 20percent. Find the net increased or decreased per cent
Please take x as number

Answer 1

Let the no be x

no after increasing =x × 120/100

=6x/5

No after decreasing =6x/5 × 80/100

=24x/25

net change = increase by (difference /initial ×100)

=6x/5 - 24x/25

=30x/25 -24x/25

= 6x/25

percent= (6x/25) / x ×100

=24%