SOLUTION: Ten years ago a mother was three times as old as her son was. The sum of their ages today is 60. How old is the mother today?
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Question 497131: Ten years ago a mother was three times as old as her son was. The sum of their ages today is 60. How old is the mother today?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
m-10=3(s-10)
m=3s-30+10
m=3s-20
m+s=60
3s-20+s=60
4s=80
s=20
m=40
The mother is 40. The son is 20.
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