Question
Present age of ‘C’ is 20% more than that of ‘D’.
3 years ago, ‘C’ was 1.4 times as old as ‘D’. Find the present age of ‘D’.Solution
Let the present age of ‘D’ be ‘x’ years
Therefore, present age of ‘C’ = 1.2x years
ATQ;
(1.2x – 3) = 1.4 × (x – 3)
Or, 1.2x – 3 = 1.4x – 4.2
Or, 1.2 = 0.2x
Or, x = 6
Therefore, present age of ‘D’ = 6 years
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