Civil Service Exam Reviewer · Word Problems · medium
A father is 5 times as old as his son. In 9 years, he will be 3 times as old as his son. How old is the son now?
- 45 years old
- 18 years old
- 11 years old
- 9 years old
Answer
D. 9 years old
Solution
Son = x, father = 5x. 5x + 9 = 3(x + 9) → x = 9.
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