The population of a city was `20,000` in the year `1997`. It increased at the rate of `5%` p.a. Find the population at the end of the year `2000`.

Explanation

To find the population of the city at the end of the year 2000, we will use the formula for compound interest, which can also be applied to population growth. The formula is:

\[ A = P \left(1 + \frac{R}{100}\right)^N \]

Where:
- \( A \) = the amount of population after \( N \) years
- \( P \) = the initial population
- \( R \) = the rate of increase (in percentage)
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