Question 972337: Five years ago, Nina was twice as old as Sam. In five years, she will be 1.5 times as old as Sam. How old are Nina and Sam.
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! Five years ago, Nina was twice as old as Sam. In five years, she will be 1.5 times as old as Sam. How old are Nina and Sam.
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5 yrs ago:
let x=Sam's age
2x=Nina's age
..
At present:
x+5=Sam's age
2x+5=Nina's age
..
In 5 yrs:
x+5+5=x+10=Sam's age
2x+5+5=2x+10=Nina's age
2x+10=1.5(x+10) (In five years, Nina will be 1.5 times as old as Sam.
2x+10=1.5x+15
0.5x=5
x=10
..
x+5=15
2x+5=25
..
How old are Nina and Sam.
Nina: 25
Sam: 15
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