SOLUTION: A father is seven times as old as his son. In ten years the sum of their ages will be 60. How old will the son be then?

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Question 1073558: A father is seven times as old as his son. In ten years the sum of their ages will be 60. How old will the son be then?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
F=7S
and
F%2B10%2BS%2B10=60
F%2BS%2B20=60
F%2BS=40
Substituting,
7S%2BS=40
8S=40
Solve for S then use either equation to solve for F.