A person is 15 times as old as his son. Five years later, he will be five times as old as his son will be. What is the present age of the person (in years)?
Question
Solution 1
Let's denote the present age of the son as x and the present age of the person as 15x (since the person is 15 times as old as his son).
According to the problem, five years later, the person will be five times as old as his son will be. This can be written as:
15x + 5 = 5(x + 5)
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