Question

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

Answer 1

answer-78400
birth rate after 3 years= 10.7*3% *64000
                                =20544
death rate after 3 years = 3.2*3% *64000
                                  = 6144
so, increase in population= 20544-6144=14400
so, population after 3 years = 64000+14400=78400