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Mathematics, 22.05.2020 02:02 emberferran
Maria, an experienced shipping clerk, can fill a certain order in 9 hours. Jim, a new clerk, needs 11 hours to do the same job. Working together, how long will it take them to fill the order
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Maria, an experienced shipping clerk, can fill a certain order in 9 hours. Jim, a new clerk, needs 1...
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