solve this sheet

yearly then n=2 \begin{tabular}{|c|c|c|c|c|} \hline \multicolumn{3}{|c|}{ Principal: Rs. 1000} & Rate: 10% per annum \\ \hline & 1"st year & 2nd year & 3rd year & Total \\ \hline SI & & & \\ \hline Cl & & & \\ \hline \end{tabular}