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      Question

      Aman invested Rs. x at 9% per annum simple interest for

      4 years and Neha invested Rs. (x + 800) at 12% per annum simple interest for 1 year. If the total interest is Rs. 372, find x.
      A Rs.500 Correct Answer Incorrect Answer
      B Rs.550 Correct Answer Incorrect Answer
      C Rs.575 Correct Answer Incorrect Answer
      D Rs.525 Correct Answer Incorrect Answer

      Solution

      ATQ:
      (x Ă— 9 Ă— 4)/100 + {(x + 800) Ă— 12 Ă— 1}/100 = 372
      36x + 12x + 9600 = 37200
      48x = 27600
      x = Rs. 575

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