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      Question

      If '+' means '-', 'X' means '+', '-' means 'Γ·', and

      'Γ·' means 'X', then what is the value of the following expression? 120 - 10 + 60 X 5 Γ· 3 X 15
      A -18 Correct Answer Incorrect Answer
      B 18 Correct Answer Incorrect Answer
      C 21 Correct Answer Incorrect Answer
      D -21 Correct Answer Incorrect Answer

      Solution

      120 - 10 + 60 X 5 Γ· 3 X 15 120 Γ· 10 - 60 + 5 X 3 + 15 12 - 60 + 15 + 15 = -18

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