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      Question

      A certain sum when invested at compound interest of 5%

      p.a. amounts to Rs. 4410.25 in 2 years. Find the amount received when the same sum is invested at 15% p.a. simple interest for 3 years.
      A Rs 5200 Correct Answer Incorrect Answer
      B Rs 5400 Correct Answer Incorrect Answer
      C Rs 5600 Correct Answer Incorrect Answer
      D Rs 5800 Correct Answer Incorrect Answer

      Solution

      Let the sum invested at compound interest be Rs. x
      According to the question,
      x(1 + 5/100) 2 = 4410.25
      or, x = 4410.25/1.1025 = Rs. 4000
      Required amount received = {(4000 Ă— 15 Ă— 3)/100} + 4000 = Rs. 5800

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