Question
The ratio of age of A and his son is 5:2. If the
difference of their ages 5 years ago is 21, then find the sum of the ages of A and his son together 11 years hence.Solution
Let the present age of A and his son be 5x and 2x respectively. => (5x – 5) – (2x – 5) = 21 => x = 7 Required sum = [(5 + 2) × 7] + 11 = 60 years
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