1. Tardigrade
  2. Question
  3. Mathematics
  4. The population of a city increases by 20 % at the end of every year. During which of the following years, the population would be doubled?

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Q. The population of a city increases by $20 \%$ at the end of every year. During which of the following years, the population would be doubled?

Percentages, Profit and Loss, Discount and Partnership

Solution:

Use the formula, $A=P(1+\frac{r}{100})^n$.