Question
Average present age of 'A', 'B' and 'C' is 25 years
whereas average present age of 'A', 'B', 'C' and 'D' is 27 years. Three years hence from now, ratio of age of 'D' and 'E' is 6:5. Find the age of 'E' two years ago from now.Solution
Present age of 'D' = 4 x 27 - 3 x 25 = 108 - 75 = 33 years Age of 'E' three years hence from now = (5/6) x (33 + 3) = 30 years Present age of 'E' = 30 - 3 = 27 years Required age = 27 - 2 = 25 years
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