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      Question

      Calculate the difference between the Least Common Multiple

      and the Highest Common Factor of 12, 30, and 45.
      A 177 Correct Answer Incorrect Answer
      B 166 Correct Answer Incorrect Answer
      C 180 Correct Answer Incorrect Answer
      D 120 Correct Answer Incorrect Answer

      Solution

      ATQ,

      LCM of (12, 30, and 45) = (2 x 2 x 3 x 5) = 180

      HCF of (12, 30, and 45) = 3

      Required difference = 180 - 3 = 177

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