SOLUTION: A Man is now 3 times as old as his son. He was 30 Years old when the son was born. How old is the son now?

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Question 379759: A Man is now 3 times as old as his son. He was 30 Years old when the son was born. How old is the son now?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Let m be the man's age and s be the son's age NOW. (always set up age problems in the now...)
Thus m = 3s. We also know he is 30 years older, or m = s + 30.
We can set them equal and get
m = 3s
m = s + 30
Therefore,
3s = s + 30
2s = 30
s = 15