Multiple choice Simple interest on a certain sum amounts to Rs. 8.25 in 2 years at 5%. Find the sum Rs. 72.50 Rs. 83.50 Rs. 82.50 Rs. 85.50 Reveal answer Fill a bubble to check yourself C Correct answer Explanation Simple Interest = (Principal * Rate * Time) / 100. Given 8.25 = (P * 5 * 2) / 100, which simplifies to 8.25 = P * 0.1. Thus, P = 8.25 / 0.1 = 82.50. AI explanation AI 1 Using the simple interest formula SI = (P * R * T) / 100, we substitute the given values to find the sum: 8.25 = (P * 5 * 2) / 100. This simplifies to 8.25 = 0.10P, so P = 8.25 / 0.10. Solving this gives P = Rs 82.50. Thanks Wrong explanation