Question 724067: two years ago, Jill was 7 times as old as Jack. Three years from now, Jill will be 4 times as old as Jack. How old are they now? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! two years ago, Jill was 7 times as old as Jack. Three years from now, Jill will be 4 times as old as Jack. How old are they now?
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2 years ago:
let x=jack's age
7x= Jill's age
..
3 years from now: (5 yrs hence)
x+5=Jack's age
7x+5=Jill's age
7x+5=4(x+5)=4x+20
3x=15
x=5
..
Now:
x+2=7
7x+2=37
jack's age now=7
Jill's age now=37
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