SOLUTION: Bordon is ten years older than his sister. In three years, he will be twice as old as she is now. How old are they now?

Question 271611: Bordon is ten years older than his sister. In three years, he will be twice as old as she is now. How old are they now?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Bordon is ten years older than his sister. In three years, he will be twice as old as she is now. How old are they now?
let sister's age be x
Bordon's age will be x+10
After three years

And Bordens age will be x+10+3
x+10+3= 2x
10+3= 2x-x
x=13------------- sister's age
Bordon's age ---------- 13+10= 23 years

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