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Two and a Half
Two and a half artists spend two and a half hours painting two and a half models on two and a half canvases. How many artists are necessary to paint twenty-four models on twenty-four canvases in twenty hours?
Answer
Three artists would do the trick. This is because twenty-four artists would paint twenty-four models in two and a half hours. Since the available time increases eight-fold (2.5 * 8 = 20), it is possible to reduce the number of painters by the same number of times (24 / 8 = 3).Hide Answer Show Answer
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