SOLUTION: Zoron is ten years older than his sister. In three years, he will be twice as old as she will be then. How old are they now?
Algebra.Com
Question 510514: Zoron is ten years older than his sister. In three years, he will be twice as old as she will be then. How old are they now?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Zoron's age now
Let = his sister's age now
given:
-------------------
By substitution:
and
Zoron is 17 and his sister is 7
check:
In 3 years, he will be 20 and she will be 10
OK
RELATED QUESTIONS
Zoron is 10 years older than his sister. In three years, he will be twice as old as she... (answered by greenestamps)
Zoron is 10 years older than his sister.In 3 years,he will be twice as old as she will be (answered by stanbon)
Bordon is ten years older than his sister. In three years, he will be twice as old as she (answered by mananth)
Boron is ten years older than his sister. In three years, he will be twice as old as she... (answered by stanbon)
Mark is 11 years older than his sister. In 8 years, he will be twice as old as she will... (answered by stanbon)
Juan is 8 years older than his sister. In 3 years, he will be twice as old as she will be (answered by scott8148)
Jack is eight years older than his sister. In three years he will be twice as old as she... (answered by TimothyLamb)
Frank is eight years older than his sister. In three years he will be twice as old as she (answered by greenestamps)
Barry is 8 years older than his sister in three years he will be twice as old as she is... (answered by Maths68)