Mathematics, 25.10.2020 23:30 haitch

Tom, Sam and Victor are painting the rooms in their new house. It takes Tom 4 hours to paint one room, but Sam and Victor take 3 hours each. If all of them work together, how long does it take them to paint one room?

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Tom, Sam and Victor are painting the rooms in their new house. It takes Tom 4 hours to paint one roo...

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