### Rs. 2100 is lent at compound interest of 5% per annum for 2 years. Find the amount after two years.

A. Rs. 2300 B. Rs. 2315.25 C. Rs. 2310 D. Rs. 2320 Answer: Option B
Here We can use formula of CI. $\begin{array}{l} A=P \times\left[1+\left(\frac{r}{100}\right)\right]^{n} \\ A=2100 \times\left[1+\left(\frac{5}{100}\right)\right]^{2} \\ A=2100 \times\left[\frac{105}{100}\right]^{2} \\ A=\frac{2100 \times 11025}{10000} \end{array}$ Hence, Amount $A=R s .2315 .25$