Question
The ratio of age of A and his son is 9:2. If the difference of their ages 7 year ago is 21, then find the sum of ages of A and his son 13 year hence?
Solution
Let the present age of Raman and his son be 9x and 2x respectively. => 9x – 2x = 21 ∴ x = 3 Required sum = 11 × 3 + 26 = 59 years
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