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      Question

      Present ages of 'A' and 'B' are in the ratio 3:4,

      respectively. Present age of 'C' is 25% more than that of 'B'. If six years ago from now, the age of 'A' was 50% less than that of 'C', then find the present age of 'C'.
      A 25 years Correct Answer Incorrect Answer
      B 30 years Correct Answer Incorrect Answer
      C 15 years Correct Answer Incorrect Answer
      D 20 years Correct Answer Incorrect Answer

      Solution

      Let the present ages of 'A' and 'B' be '3x' years and '4x' years.

      So, present ages of 'C' = 4x X 1.25 = '5x' years

      ATQ;

      (5x - 6) X 0.5 = (3x - 6)

      Or, 2.5x - 3 = 3x - 6

      Or, 0.5x = 3

      So, x = 6

      So, present age of 'C' = 6 X 5 = 30 years

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