What is the compound interest on ₹4,000 for 2 years at 10% per annum, compounded annually?A₹800B₹820C₹880D₹840 Correct answer: D ExplanationAmount = 4000 × (1.1)² = ₹4,840, so CI = 4,840 − 4,000 = ₹840. Join the discussion Report an error