Question
The ratio of age of A and his son is 5:2. If the
difference of their ages 4 year ago is 21, then find the sum of ages of A and his son 9 year hence? TYPE 44Solution
Let the present age of Raman and his son be 5x and 2x respectively. => 5x – 2x = 21 ∴  x = 7 Required sum = 7 × 7 + 18 = 67 years
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