5. The population of a town is 64,000. If the annual birth rate is 10.

1.	5. The population of a town is 64,000. If the annual birth rate is 10.7% and theannual death rate is 3.2%, calculate the population after three years.(Hint: Net growth rate (Birth rate-Death rate)%)
Answer» Birth rate = 10.7%death rate = 3.2%rate of increase in population = birth rate - death rate = 10.7-3.2 = 7.5% the population 64000then increase in population in 1st year = (7.5/100)64000= 4800population at the end of first year = 64000+4800 = 68800 then increase in population in 2nd year = (7.5/100)68800= 5160population at the end of second year= 68800+5160 = 73960 then increase in population in 3rd year = (7.5/100)*73960= 5547population at the end of third year= 73960+5547 = 79507 So the population at the end of third year is 79507.

5. The population of a town is 64,000. If the annual birth rate is 10.7% and theannual death rate is 3.2%, calculate the population after three years.(Hint: Net growth rate (Birth rate-Death rate)%)

Answer»

Birth rate = 10.7%death rate = 3.2%rate of increase in population = birth rate - death rate = 10.7-3.2 = 7.5%

the population 64000then increase in population in 1st year = (7.5/100)*64000= 4800population at the end of first year = 64000+4800 = 68800

then increase in population in 2nd year = (7.5/100)*68800= 5160population at the end of second year= 68800+5160 = 73960

then increase in population in 3rd year = (7.5/100)*73960= 5547population at the end of third year= 73960+5547 = 79507

So the population at the end of third year is 79507.