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      Question

      The LCM and HCF of two integers are 540 and 12

      respectively. If one of the integers is 90, find the second integer.
      A 72 Correct Answer Incorrect Answer
      B 40 Correct Answer Incorrect Answer
      C 81 Correct Answer Incorrect Answer
      D 94 Correct Answer Incorrect Answer

      Solution

      ATQ,

      тАШLet, the second integer be x.

      We know,

      LCM ├Ч HCF = product of two numbers

      Or, 540 ├Ч 12 = x ├Ч 90

      Or, x = (540 ├Ч 12)/90

      Or, x = 72

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