Interest

One thing which is tricky in this question is to calculate the number of days.

Always remember that the day on which money is deposited is not counted while the day on which money is withdrawn is counted.

So lets calculate the number of days now,

Number of days = 24 + 31 + 18

t = $\genfrac{}{}{1px}{}{73}{\mathrm{365}}$ years = $\genfrac{}{}{1px}{}{1}{5}$ years

P = 2000

R = $\genfrac{}{}{1px}{}{25}{4}$%

I = $\genfrac{}{}{1px}{}{\mathrm{2000\; \times \; 25}}{\mathrm{4\; \times \; 5\; \times \; 100}}$ = 25