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      Question

      The HCF of two numbers is 12 and their LCM is 720. If

      one of the numbers is 144, then what will be the other number?
      A 60 Correct Answer Incorrect Answer
      B 45 Correct Answer Incorrect Answer
      C 70 Correct Answer Incorrect Answer
      D 25 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, Product of two numbers = HCF x LCM So, First x Second = 12 x 720 = 8640 Given one number = 144 Other number = 8640 / 144 = 60 Hence, the correct answer is 60.

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