10 - Work Problems Flashcards
1
Q
Three machines operating independently, simultaneously, and at the same constant rate can fill a certain production order in 36 hours. If one additional machine were used under the same operating conditions, in how many fewer hours of simultaneous operation could the production order be filled?
A
3 machines @ 36 hours = 108 total work hours
108/4 = 27, so 9 fewer work hours
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10
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14
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19
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27
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28
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