Mathematics, 18.09.2019 14:00, Pbaer3087

An experienced housepainter can paint an inside wall in under twenty minutes. an inexperienced housepainter can take up to one hour. if a team of an experienced painter and an inexperienced painter work on a room together, what is the longest it should take them to paint the four walls, if they finish at the same time?

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An experienced housepainter can paint an inside wall in under twenty minutes. an inexperienced house...