Asked by Mark

Sue, an experienced shipping clerk, can fill a certain order in 5 hours. Jim, a new clerk, needs 12 hours to do the same job. Working together, how long will it take them to fill the order?
Answered by Steve
1/5 + 1/12 = 1/x
Answered by Mark
Okay, so I got 60/17 = 3.529 hours?
Answered by Steve
looks good to me.
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