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      Question

      The average price of two laptops, namely 'D' and 'E' is

      Rs. 65,500 whereas the average price of laptops 'E' and 'F' is Rs. 70,000. If the average price of laptop 'D' and 'F' is Rs. 67,750, then find the price of laptop 'F'.
      A Rs.72,250 Correct Answer Incorrect Answer
      B Rs.72,500 Correct Answer Incorrect Answer
      C Rs.87,400 Correct Answer Incorrect Answer
      D Rs.52,000 Correct Answer Incorrect Answer

      Solution

      ATQ, Let the price of laptop ‘D’, ‘E’ and ‘F’ be Rs. ‘p’, Rs. ‘q’ and Rs. ‘r’, respectively. p + q = 1,31,000 q + r = 1,40,000 r + p = 1,35,500 So, 2(p + q + r) = 4,06,500 Or, p + q + r = 2,03,250 So, price of laptop ‘r’ = 2,03,250 – 1,31,000 = Rs. 72,250

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