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      Question

      The LCM of two numbers is 168, and the numbers are in

      the ratio 4:7. Find the sum of the numbers.
      A 20 Correct Answer Incorrect Answer
      B 28 Correct Answer Incorrect Answer
      C 56 Correct Answer Incorrect Answer
      D None of these Correct Answer Incorrect Answer

      Solution

      ATQ,
      Let the numbers be 4m and 7m.

      LCM of the numbers = 28m

      Given, 28m = 168

      So, m = 168 รท 28 = 6.

      Thus, the numbers are 24 and 42.

      Hence, the sum = 24 + 42 = 66.

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