Question

The population of a suburb is 16,000. Find the rate of increase in the population if the population after two years is 17,640.

Answer 1

Here, P = Population of a suburb = 16,000 

N = 2 years 

A = Increase in the population after 2 years = 17,640 

R = Rate of increase in population

∴ 5 = R 

i.e., R = 5% 

∴ The rate of increase in the population is 5 p.c.p.a.