Question

the incresing in population of a town is 10% every year . if the present population is 100000 what will be the population after 3 years?

Answer 1

$\frac{10}{100} \times 100000 \\ = 10000 \\ = 100000 + 10000 \\ = 110000 \: \: this \: is \: the \: calculation \: for \: one \: year \\ \frac{10}{100} \times 110000 \: \: \: the \: population \: of \: the \: second \: year \\ = 11000 \\ = 110000 + 11000 = 111000 \\ \frac{10}{100} \times 111000 \\ = 11100 \\ 111000 + 11100 \\ = 122100$
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