The simple interest on a principal amount (in INR) is INR 824 for a period of 4 years at the rate of 8% per annum. The principal amount (in INR) is:A2577B2573C2571D2575Answer: D. 2575 Read Explanation: We use the simple interest formula:SI=P×R×T100\text{SI} = \frac{P \times R \times T}{100}SI=100P×R×TGiven:SI = 824Rate (R = 8%) per annumTime (T = 4) yearsSubstitute values824=P×8×4100824 = \frac{P \times 8 \times 4}{100}824=100P×8×4824=32P100824 = \frac{32P}{100}824=10032PP=824×10032P = \frac{824 \times 100}{32}P=32824×100P=2575P = 2575P=2575Principal amount = INR 2,575 Read more in App