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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)Β² = 4000 Γ— (1 + 10/100)Β² = 4000 Γ— (1.10)Β² = 4000 Γ— 1.21 = 4840 Compound interest = A βˆ’ P = 4840 βˆ’ 4000 = 840 Answer: Rs. 840

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