Machines

In the workshop are three machines. The first is treated 350 parts for 4.3 hours, the second is treated 490 parts for 4.6 hours and the third is treated 360 parts for 3.7 hours.

How long will take to make 3080 parts if worked all three machines at the same time?

Result

t =  10.8 h

Solution:

Solution in text t =







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