<PRE><B>Question 718228</B>
I work in retail I can inventory and shelve a UPS shipment in 2 hours. My co-worker usually takes 3 hours. What fraction of the job can the the two of us do in 1 hour working together. 
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Your DATA:
time = 2 hrs/job ; rate = 1/2 job/hr
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Co DATA:
time = 3 hrs/job ; rate  1/3 job/hr
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Equation:
(1/2) + (1/3) = 5/6 job/hr
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Cheers,
Stan H.</PRE>