- A15
- B12
- C10
- D20
Step-by-Step Solution
Let the son be s and the father 3s. Then 3s + 5 = 2.5(s + 5) gives 0.5s = 7.5, so s = 15 years.
Answer: A) 15
The present age of a father is three times that of his son. Five years from now, the father's age will be two and a half times the son's age. Find the son's present age.
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