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      Question

      The simple interest received after 2 years on Rs (x +

      800) at the rate of 20% p.a is Rs (2x – 1800). The amount received on Rs 4x when invested at 50% p.a compound interest, compounded annually for 2 years can be:
      A Rs. 16975 Correct Answer Incorrect Answer
      B Rs. 11925 Correct Answer Incorrect Answer
      C Rs. 15161 Correct Answer Incorrect Answer
      D Rs. 15572.50 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      According to the question,
      {(x + 800) × 2 × 20}/100 = (2x – 1800)
      => 2x + 1600 = 10x – 9000
      => 8x = 10600
      => x = 1325
      Therefore, required amount received = 4x . (1 + 50/100)2 = Rs. 11925

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