jstubb01 jstubb01

29-01-2017
Mathematics

contestada

Kopy Kwik has 2 copiers. One can produce a year end report in 20 min. The other can produce the same document in 30 min. How long would it take both machines, working together, to produce the report?

Respuesta :

29-01-2017

It would take them about 10 minutes I'm pretty sure.

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