SOLUTION: Two Years ago, a boy was 5/4 as old as his sister, In 13 years he will be 10/9 as old as his sister. How Old is the boy?
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Question 984157: Two Years ago, a boy was 5/4 as old as his sister, In 13 years he will be 10/9 as old as his sister. How Old is the boy?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
x, the sister
y, the boy
Goal is solve for y.
17
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