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      Question

      Amit invested a total of Rs. 14,000, dividing the amount

      between two schemes: one offering compound interest (compounded annually) and the other offering simple interest, both at the same rate. After 2 years, the difference between the compound interest and simple interest earned is Rs. 315. Find the annual rate of interest.
      A 15 Correct Answer Incorrect Answer
      B 12 Correct Answer Incorrect Answer
      C 10 Correct Answer Incorrect Answer
      D 18 Correct Answer Incorrect Answer
      E 20 Correct Answer Incorrect Answer

      Solution

      C.I - S.I = P (R/100) 2
      Rs. 315 = 14000 * R 2 /10000
      R 2 Β = 3150000/14000
      R 2 Β = 225
      R = 15%

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