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      Question

      Find the value of ‘x’ if x% of 600 + {1440 ÷ x of

      16} × 8 = 156
      A 15 Correct Answer Incorrect Answer
      B 6 Correct Answer Incorrect Answer
      C 9 Correct Answer Incorrect Answer
      D 12 Correct Answer Incorrect Answer

      Solution

      x% of 600 + {1440 ÷ x of 16} × 8 = 156

      Or, 6x + 720/x = 156

      Or, x2 – 26x + 120 = 0

      Or, x2 – 20x – 6x + 120 = 0

      Or, x(x – 20) – 6(x – 20) = 0

      Or, (x – 6)(x – 20) = 0

      Or, x = 6 or x = 20

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