Question

The population of a town is $$20, 000$$. If the annual birth rate of is $$4\%$$ and annual death rate is $$2\%$$ calculate the population after two years.

Solution

Annual birth rate is $$4\%$$Annual death rate is $$2\%$$Net $$=+2\%$$Population after $$2$$ years $$=(1+0.02)^2 \times 20000=20808$$Maths

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