SOLUTION: Three computers can print out a task in 18 min, 27 min, and 54 min, respectively. How long would it take to complete the task with all three computers working?

Question 674485: Three computers can print out a task in 18 min, 27 min, and 54 min, respectively. How long would it take to complete the task with all three computers working?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Add their rates of printing to get
the rate with all 3 working

Multiply both sides by

It would take 9 minutes with all 3
computers working

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