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      Question

      Present age of ‘R’ is 30% more than that of ‘S’. 4

      years ago, ‘R’ was 1.6 times as old as ‘S’. Find the present age of ‘S’.
      A 8 years Correct Answer Incorrect Answer
      B 9 years Correct Answer Incorrect Answer
      C 10 years Correct Answer Incorrect Answer
      D 11 years Correct Answer Incorrect Answer
      E 12 years Correct Answer Incorrect Answer

      Solution

      Let the present age of ‘S’ be ‘x’ years
      Therefore, present age of ‘R’ = 1.3x years
      ATQ;
      (1.3x – 4) = 1.6 × (x – 4)
      Or, 1.3x – 4 = 1.6x – 6.4
      Or, 2.4 = 0.3x
      Or, x = 8
      Therefore, present age of ‘S’ = 8 years

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