SOLUTION: Ben is 3 years older than his sisyer and a third of the age of his mother.His father is 4 years older than his mother and four times the age of his sister. How old is Ben?
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Question 1084503: Ben is 3 years older than his sisyer and a third of the age of his mother.His father is 4 years older than his mother and four times the age of his sister. How old is Ben?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Let Ben's age be b. Then his sister is b-3, and his mother is 3b. This makes his father 3b+4. So:
3b+4=4(b-3)
3b+4=4b-12
b=16
Ben is 16. ☺☺☺☺
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