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      Question

      The ratio of two numbers is 9:12 and their LCM is 324.

      The numbers are:
      A 32,64 Correct Answer Incorrect Answer
      B 50,100 Correct Answer Incorrect Answer
      C 81,108 Correct Answer Incorrect Answer
      D 60,80 Correct Answer Incorrect Answer

      Solution

      Let two numbers be A and B. => A:B = 9x:12x LCM = 9┬а├Ч┬а12┬а├Ч┬аx = 36x => 36x = 324 => x = 9 A = 9x = 9┬а├Ч┬а9 = 81 B = 12x = 12┬а├Ч┬а9 = 108

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