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      Question

      The LCM of two numbers is 5400 while their HCF is 90.

      If one of the numbers is 900, then the other number is:
      A 600 Correct Answer Incorrect Answer
      B 900 Correct Answer Incorrect Answer
      C 1200 Correct Answer Incorrect Answer
      D 540 Correct Answer Incorrect Answer

      Solution

      Given:
      - LCM of two numbers = 5400
      - HCF of two numbers = 90
      - One number = 900

      Since,
      HCF of two numbers × LCM of two numbers = First number × Second number
      Second number = (90 × 5400)/900 = 486000/900 = 540
      So, the other number is 540.

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