Question

A no. is first increased by 20% and then decreased by 20% find the net increase or decrease percent

Answer 1

Hey There! Your solution is in the attachment











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Answer 2

let the no to be x then
increase 20 %
=x of 20 %
=x/5
increase =x+x/5
= 6x/5
decrease 20%
x of 20%
=x/5
decrease =x-x/5
=4x/5
=now increase %
6x/5-4x/5
=2x/5
increase %
2x/5/6x/5×100
=100/3%answer