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      Question

      The LCM of two numbers is 210. If their HCF is 15 and

      one of the numbers is 105, find the other number.
      A 35 Correct Answer Incorrect Answer
      B 30 Correct Answer Incorrect Answer
      C 105 Correct Answer Incorrect Answer
      D 140 Correct Answer Incorrect Answer

      Solution

      Second number =LCM ร—HCF)/first number = (210ร—15)/105 =30.

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