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The population of a village is 10000. If the population increases by 10% in the first year, by 20% in the second year and due to mass exodus it decreases by 5% in the third year, what will be its population after 3 years ?

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Population after 3 years = 10000\(\big(1+\frac{10}{100}\big)\)\(\big(1+\frac{20}{100}\big)\)\(\big(1-\frac{5}{100}\big)\)

= 10000 x \(\frac{11}{10}\) x \(\frac{6}{5}\) x \(\frac{19}{20}\) = 12540.

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