SOLUTION: It takes Robert 6 hours to do the job alone. Robert and Tim working together takes 3 hours to do the job. How long will it take Tim working alone? Give answer in hours and minutes.
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Question 443759: It takes Robert 6 hours to do the job alone. Robert and Tim working together takes 3 hours to do the job. How long will it take Tim working alone? Give answer in hours and minutes. Answer by rwm(914) (Show Source):
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