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      Question

      Find the rate of simple interest at which Rs. 5000

      should be invested for 2 years so that the interest earned will be same as the interest received when the same amount is invested at 20% at compound interest compounded annually for same time period.
      A 20% Correct Answer Incorrect Answer
      B 25% Correct Answer Incorrect Answer
      C 22% Correct Answer Incorrect Answer
      D 27% Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Compound interest earned in 2 years = 5000 ร— [(1.2)^2 โ€“ 1] = 0.44 ร— 5000 = Rs. 2200 Let the rate of simple interest is R% According to question, (5000 ร— R ร— 2)/100 = 2200 100 ร— R = 2200 R = 22%

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