SOLUTION: Frank ca type 500 pages in 50 hours and James takes 75 hours. If a third typist is added, and all three work together, the job is done in 25 hours. How long would the third typist

Question 909527: Frank ca type 500 pages in 50 hours and James takes 75 hours. If a third typist is added, and all three work together, the job is done in 25 hours. How long would the third typist take to do the job on her own? Based on this analysis, should they hire her.
I got a negative answer. Not sure if I had set up the problem correctly.
Thank you for your help
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Not sure if I had set up the problem correctly.
So where is it? How can we tell if that was the problem?
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