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Mathematics, 08.05.2021 08:40 mayamcmillan11

If Juwan does a job in 21 hours less time than Riley, and they can do the job together in 10 hours, how long will it take each to do the job alone?

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If Juwan does a job in 21 hours less time than Riley, and they can do the job together in 10 hours,...

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