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      Question

      A invested Rs. X in a scheme. After 6 months, B joined

      with Rs 4000 more than that of A. After an year, ratio of profit of B to the total profit was 3: 7. Find the value of X.
      A Rs. 8500 Correct Answer Incorrect Answer
      B Rs. 8000 Correct Answer Incorrect Answer
      C Rs. 8570 Correct Answer Incorrect Answer
      D Rs. 8400 Correct Answer Incorrect Answer

      Solution

      Profit of B/Total Profit = 3/7 = ((X+4000)×6)/(X × 12 + (X+4000) × 6) 7X + 28000 = 9X + 12000 2X = 16000 X = 8000

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