Question
The present age of a father is 5 times that of his son.
After 6 years, the father’s age will be 4 times the age of his son. What is the present age of the father?Solution
Let son’s present age = s years Father’s present age = 5s After 6 years: Father = 5s + 6 Son = s + 6 Given: 5s + 6 = 4(s + 6) 5s + 6 = 4s + 24 s = 18 Father’s present age = 5 × 18 = 90 years
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