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24-03-2017
Mathematics

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Ricky can paint a room in 4 hours. carrie can paint the same room in 3 hours. working together, how long would it take them to paint the room?

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saakshy saakshy

24-03-2017

R can pain the room in 4 hours, C can paint the room in 3 hours
Both can paint the room in 1/ (1/3 + 1/4) hours
=12/7 hours

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