SOLUTION: If one computer does a job in 15 minutes, and the same computer working with another computer on the same job does it in 5 minutes. how long does it take for the second computer to

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If one computer does a job in 15 minutes, and the same computer working with another computer on the same job does it in 5 minutes. how long does it take for the second computer to      Log On


   



Question 736655: If one computer does a job in 15 minutes, and the same computer working with another computer on the same job does it in 5 minutes. how long does it take for the second computer to do the same job by its self.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/15+1/x=1/5
x=15/2=7.5