19runymc1 19runymc1

13-06-2017
Mathematics

contestada

If Jim Roller can paint a room in 3 hours while John Brush would take 4 hours, how long will they take if they work together? 1/7 hour 1 hour 1 5/7 hours

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OuijaMutt OuijaMutt

13-06-2017

The answer is 1 5/7 hours.

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