Multiple choice CI on a sum for 3 years at 16.67% rate of interest is Rs. 1587.5. Find the sum. 3500 2700 2550 3000 None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation 16.67% is approximately 1/6. Using CI = P[(1 + r)³ - 1], where P is principal and r is rate: CI = P[(1 + 1/6)³ - 1] = P[(7/6)³ - 1] = P[343/216 - 1] = P(127/216). Given CI = 1587.5, so P = 1587.5 × 216/127 = 2700. Option B is correct.