A principal amount of ₹1,000 yields a simple interest of ₹180 over a period of 2 years. What is the annual rate of simple interest?A8%B9%C7%D6%Answer: B. 9% Read Explanation: Use the Simple Interest formula:SI=P×R×T100SI=\frac{P \times R \times T}{100}SI=100P×R×TWhere:(P = ₹1000)(SI = ₹180)(T = 2) years(R = ?)Substitute the values:180=1000×R×2100180=\frac{1000 \times R \times 2}{100}180=1001000×R×2180=20RR=18020=9R=\frac{180}{20}=9R=20180=9Answer: (9% per annum)(\boxed{9\% \text{ per annum}})(9% per annum) Read more in App