Question

the annual rate of growth in population of a certain City is 8%.if its present population is 196830 what was the population three year ago?

Answer 1

x= 182250
if y= population two years ago, then;
108% of y = 182250
y= 182250 x 100/108
y = 168750
if z= population three years ago, then;
108% of x = 168750
z = 168750 x 100/108
z= 156250