Mathematics
Mathematics, 30.01.2020 05:00, 0436500

Three workers have to do a certain job. the first worker can finish the job in 8 hours. the second worker can finish the job in 4 hours. the third worker can also finish the job in 4 hours. how long will it take the three workers to finish the job if they work together?

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Three workers have to do a certain job. the first worker can finish the job in 8 hours. the second w...

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