Question

If in a village the population decreased by 20% increase by 10% and increase by 10% the new population is what percentage of the original population

Answer 1

by using formula
-20 +10 -20×10/100
= -10 - 2
= -12%
now -12% +10 - 12×10/100
= -2% - 1.2
= -3.2% of the original population