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      Question

      In a company, the production proportions of tables,

      chairs, and laptops are 10%, 30%, and 60% of their combined total production, respectively. The percentages of defective items for tables, chairs, and laptops are 20%, 40%, and 60% of their respective production levels. If the production of tables is 200 units, calculate the difference between the number of non-defective chairs and non-defective laptops.
      A 145 Correct Answer Incorrect Answer
      B 165 Correct Answer Incorrect Answer
      C 125 Correct Answer Incorrect Answer
      D 120 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Production of chairs = (200/10) × 30 = 600 Number of non-defective chairs = 600 × 0.6 = 360 Production of laptops = (200/10) × 60 = 1200 Number of non-defective laptops =1200 × 0.4 = 480 Required difference = 480 – 360 = 120

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