Question

The number of illiterate person in a country decreased from 150 lakes to 100 lakes in 10 years. what is the percentage of decrease

Answer 1

see the photo for solution

Answer 2

Answer-we can write it as 33.3% or 33 1/3 ,both r correct

Amount of change=150-100=50

Orginal amount=150

% of decrease=50/150 × 100=33 1/3 or 33.3