Find CI on ₹ 52000 for 4 years at 12% per annum compounded annually.

We have, $\mathrm{A}=\mathrm{P}{\left(1+\frac{\mathrm{R}}{100}\right)}^{\mathrm{n}}$, where Principal (P) = ₹ 52000, Rate (R) = 12%, Number of years (n) = 4.

$\mathrm{A}=₹ 52000{\left(1+\frac{12}{100}\right)}^4$

$=₹ 52000{\left(\frac{28}{25}\right)}^2$

$=₹ 52000\times \frac{28}{25}\times \frac{28}{25}$

$=₹ 65228.8$

CI = A - P = ₹ 65228.8 - ₹ 52000 = ₹ 13228.8.

Therefore, CI on ₹ 52000 for 4 years at 12% per annum compounded annually is ₹ 13228.8.