Mathematics
Mathematics, 01.10.2021 16:30, hickslily9

An experienced shipping clerk can fill a certain order in 4 hours. A new clerk needs 7 hours to do the same job. Working together, how long will it take them to fill the order?
It will take hours to fill the order working together.
(Simplify your answer. Type an integer, fraction, or mixed number.)

answer
Answers: 3

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