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Mathematics, 11.03.2021 02:50 Kemosdasavage

An experienced roofer can roof a house in 26 hours. A begin- ning roofer needs 39 hours to complete the same job. Find
how long it takes for the two to do the job together.

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Answers: 3

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An experienced roofer can roof a house in 26 hours. A begin- ning roofer needs 39 hours to complete...
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