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Six qualified workers can cast 100 tons of raw copper in 2 [#permalink]
26 May 2008, 01:35
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Six qualified workers can cast 100 tons of raw copper in 2 hours. Two apprentices who work 2/3 as fast as a qualified worker are added to the group. Finally, the work is done. How much time has been saved due to the apprentices? _________________
HBS: Reimagining Capitalism: Business and Big Problems : Growing income inequality, poor or declining educational systems, unequal access to affordable health care and the fear of continuing economic distress...