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      Question

      The total cost price of a mobile charger and an earphone is

      Rs. 375. Earphone is sold at a profit of 37.5% while charger is sold at a loss of 4%. Find the selling price of the charger if the selling price of the earphone is Rs. 275.
      A Rs 175 Correct Answer Incorrect Answer
      B Rs 168 Correct Answer Incorrect Answer
      C Rs 200 Correct Answer Incorrect Answer
      D Rs 120 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let the cost price of earphone be 8t
      Selling price of earphone = 8t + (3/8) x 8t = 11t
      Let the cost price of charger be 25y
      Selling price of charger = 25y - (1/25) x 25y = 24y
      Given, 11t = 275
      => t = 25
      Cost price of the earphone = 8t = 8 x 25 = Rs. 200
      Hence, cost price of charger = 375 - 200 = Rs. 175
      => 25y = 175
      => y = 7
      Hence, required selling price of the charger = 24y = 24 x 7 = Rs. 168

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