SOLUTION: Jack is twice as old as Jill but in five years time he will only be one and half times as old. How old is Jack and Jill now?

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Question 303143: Jack is twice as old as Jill but in five years time he will only be one and half times as old. How old is Jack and Jill now?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Jack is twice as old as Jill
Ja = 2Ji
:
but in five years time he will only be one and half times as old.
Ja + 5 = 1.5(Ji+5)
Ja + 5 = 1.5Ji + 7.5
Ja = 1.5Ji + 7.5 - 5
Ja = 1.5Ji + 2.5
Replace Ja with 2Ji
2Ji = 1.5Ji + 2.5
2Ji - 1.5Ji = 2.5
.5Ji = 2.5
Mult both sides by 2
Ji = 5
:
I'll let you find Ja's age