SOLUTION: A boy's age is three times the age of his sister. Their ages together total 16 years. what is the age of each?

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Question 267658: A boy's age is three times the age of his sister. Their ages together total 16 years. what is the age of each?
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
B=3S
B+S=16
3S+S=16
S=4
B=12