Question

A number is increased by 20% and the resulting number is then decreased by 10%. Find the over all change in the number as percent

Answer 1

20% =1/5
means original 5 and increase 5+1 =6
10% =1/10
means original 10 and decrease 10-1=9
so 5 ×10 =50
6×9=54
so no is increase by 4
% = 4/50×100=8%