SOLUTION: The last one for the day! Another problem from the GRE Math Review for the General Test! If 3 times Jane's age, in years, is equal to 8 times Beth's age, in years, and the di

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: The last one for the day! Another problem from the GRE Math Review for the General Test! If 3 times Jane's age, in years, is equal to 8 times Beth's age, in years, and the di      Log On

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Question 143232: The last one for the day!
Another problem from the GRE Math Review for the General Test!
If 3 times Jane's age, in years, is equal to 8 times Beth's age, in years, and the difference between their ages is 15 years, how old are Jane and Beth?
Thank you!!

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3J=8B
J-B=15
J=15+B
3(15+B)=8B
45+3B=8B
8B-3B=45
5B=45
B=9 AGE OF BETH.
3J=8*9
3J=72
J=72/3
J=24 AGE OF JANE.
PROOF:
24-9=15
3*24=8*9
72=72