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A carpet layer can put down 400 square feet of carpet in 2.5 hours. How many hours will it take to lay down 600 square feet of carpet?

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First take 400 and divide it by 2.5 to find the hourly rate. Then divide 600 by the hourly rate (160) to get 3.75 hours. My work is listed below.
A carpet layer can put down 400 square feet of carpet in 2.5 hours. How many hours-example-1
User MichK
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