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      Question

      If 18 & 6 # 32 = 76 and 60 # 6 & 5 = 10, then

      15 & 5 # 42=?
      A 32 Correct Answer Incorrect Answer
      B 44 Correct Answer Incorrect Answer
      C 38 Correct Answer Incorrect Answer
      D 42 Correct Answer Incorrect Answer

      Solution

      Here & means ' × ' and # means ' − ' In, 18 & 6 # 32 = 76 18 × 6 – 32 = 76 108 – 32 = 76 76 = 76 In, 60 # 6 & 5 = 10 40 – 6 × 5 = 15 40 – 30 = 10 10 = 10 Similarly, 15 & 5 # 42=? 15 × 5 – 42 = ? 75 – 43 = 32. Hence, option a.

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