Civil Service Exam Reviewer · Word Problems · medium
A father is 3 times as old as his son. In 7 years, he will be 2 times as old as his son. How old is the son now?
- 21 years old
- 14 years old
- 7 years old
- 9 years old
Answer
C. 7 years old
Solution
Son = x, father = 3x. 3x + 7 = 2(x + 7) → x = 7.
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