A roofer requires 10 h to shingle a roof. After the roofer and an apprentice work...

A roofer requires 10 h to shingle a roof. After the roofer and an apprentice work on a roof for 5 h, the roofer moves on to another job. The apprentice requires 13 more hours to finish the job. How long would it take the apprentice, working alone, to do the job?

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milcah answered 1 year ago

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