Mathematics, 20.08.2019 23:30 fatboi82

It takes doug 6 days to reroof a house. if doug's son him, the job can be completed in 4 days. how long would it take doug's son, working alone, to do the job?

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It takes doug 6 days to reroof a house. if doug's son him, the job can be completed in 4 days. how...

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