Question

population of a town is 64000 if the annual birth rate is 10.7 % and annual death rate is 3.2 % calculate the population after 3 years

Answer 1

Population in present year = 64,000
Annual birth rate = 10.7%
Annual death rate = 3.2%
Therefore, growth = 10.7-3.2=7.5%
Population after three years,
64,000(1+7.5/100)^3
64000*107.5/100*107.5/100*107.5/100
64*1075/100*1075/100*1075/100
43*43*43
1849*43
79507