Question

a number is increased by 20% and then decreased by 20%. find the net increase or decrease per cent ​

Answer 1

Answer:

let the number be x.

when increased by 20% it becomes 1.2x.

when this is decreased by 20%, it becomes 1.2 (0.8)x = 0.96x.

so it is decreased.

the decrease is 0.04x

. that is 4%