Question

A population increases by 5 percent every year. Find the increase in the population in 2 years of the original population was 1,50,000

Answer 1

population increase in one year = 5%
original population = 1,50,000

1 year population 150000+5%

Answer 2

Given that population increases by 5% every year.

R = 5%.

Given that original population was 150000.

P = 150000.

T = 2 years.


We know that A = P(1 + r/100)^n

                           = 150000(1 + 5/100)^2

                           = 150000(21/20)^2

                           = 150000 * 441/400

                           = 661500/4

                           = 165375.


Therefore the population in 2 years = 165375.


Hope this helps!