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Mathematics, 13.12.2021 04:50 josiesolomonn1615

A roofer requires 14 h to shingle a roof. After the roofer and an apprentice work on a roof for 7 h, the roofer moves on to another job. The apprentice requires 14 more hours to finish the job. How long would it take the apprentice, working alone, to do the job?

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A roofer requires 14 h to shingle a roof. After the roofer and an apprentice work on a roof for 7 h,...
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