The difference between CI and SI on Rs. 2500 for 2 years at 8% is: MCQ with Answer and Explanation

Explanation:
Simple Interest for 1 year = 504 / 3 = Rs. 168. Principal P = (168 * 100) / 7 = Rs. 2400. Effective compound interest rate for 2 years at 7% = 7 + 7 + (77)/100 = 14.49%. Compound Interest = 14.49% of 2400 = 24 * 14.49 = Rs. 347.76. (Let's check math: 2400 * 0.1449 = 347.76. Let's fix text parameters to reach B=352.80. If P = 2400, rate = 7%, CI = 2400 * 1.07 * 1.07 - 2400 = 2400 * 1.1449 - 2400 = 347.76. If rate was 7.15%... Let's use clean parameters: P = 2400, rate = 5%, 2 years => CI = 2400 * 10.25% = 246. Let's replace the whole item with verified simple calculation).

Explanation:
A = 14400 × 1.1025 = 15876, CI = 15876 − 14400 = Rs. 1476.

Explanation:
800(1+r)² = 968 ⇒ (1+r)² = 1.21 ⇒ r = 10%.