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      Question

      The cost of packaging of the oranges is 25% the cost of

      fresh oranges themselves. The cost of oranges increased by 30% but the cost of packaging decreased by 45%, then the percentage change of the cost of packed oranges, if the cost of packed oranges is equal to the sum of the cost of fresh oranges and cost of packaging
      A 20.83% Correct Answer Incorrect Answer
      B 22.60% Correct Answer Incorrect Answer
      C 12.72% Correct Answer Incorrect Answer
      D 13% Correct Answer Incorrect Answer
      E 19.16% Correct Answer Incorrect Answer

      Solution

      Let initial Cost of fresh, oranges = 100
      packaging cost = 25, Initial total cost = 100 + 25 = 125
      After increasing in cost of fresh oranges 30%,
      Cost of fresh oranges = 130
      And cost of packing go down by 45% so,
      Cost of packing = 11.25
      Total cost = 130 + 11.25 = 141.25
      Increased cost = 141.25 – 125 = 16.25
      % increased = (16.25 x 100) /125 = 13%

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