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      Question

      Determine the value of β€˜x’ if x% of 500 plus {1250

      Γ· x of 10} Γ— 5 equals 130
      A 25 Correct Answer Incorrect Answer
      B 12 Correct Answer Incorrect Answer
      C 10 Correct Answer Incorrect Answer
      D 8 Correct Answer Incorrect Answer

      Solution

      ATQ,

      x% of 500 + {1250 Γ· x of 10} Γ— 5 = 130

      Or, 5x + 625/x = 130

      Or, xΒ² – 26x + 625 = 0

      Or, xΒ² – 25x – x + 625 = 0

      Or, x(x – 25) – 1(x – 25) = 0

      Or, (x – 1)(x – 25) = 0

      Or, x = 1 or x = 25

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