the population of village is 20000 if the birthrate is 5% per annum and that rate is 3% per and find the population after 2 years
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Net growth rate=(B-D)%
=(5-3)%=2%
Therefore, population after 2 years
=20000(1+2/100)^2
=20000(100+2÷100)^2
=20000(102/100)^2
=20000×102/100×102/100=20,808
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