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      Question

      Find the compound interest on Rs. 4000 at 10% per annum

      for 2 years, compounded annually.
      A Rs. 540 Correct Answer Incorrect Answer
      B Rs. 940 Correct Answer Incorrect Answer
      C Rs. 800 Correct Answer Incorrect Answer
      D Rs. 840 Correct Answer Incorrect Answer

      Solution

      Amount A = P(1 + r/100)² = 4000 × (1 + 10/100)² = 4000 × (1.10)² = 4000 × 1.21 = 4840 Compound interest = A − P = 4840 − 4000 = 840 Answer: Rs. 840

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