Question

a number is first increased by 20% and then decreased by 15%. find the net increase or decrease percent

Answer 1

The net 2% increase....

Answer 2

let's take the number as 100
if we increase 100 by 20%
we get 120
as 20/100*100
=20
so 100+20
120
and then we have to decrease 120 by 15%
which is 15/100*120
we get 18
so now if we decrease 120 by 18
we get
102
the net increase is
102-100
=2
to find the increase percent
x/100*100=2
x is percent
we get x as 2%
so, we increase the number by 2%
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