- #1
mindauggas
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Homework Statement
Machine A can do a job, working alone, in 4 hours less than machine B. Working together, they can complete
the job in 5 hours. How long would it take each machine, working alone, to complete the job?
Homework Equations
Ans. Machine A: 8.4 hours; machine B: 12.4 hours, approximately
The Attempt at a Solution
Don't know how to reason this one through ...