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20) In a company party, 1/2 of the attendees are employees, 1/3 are their spouses.  What percentage are neither employees or spouses?

1/2 = 50%

1/3 = 33.3%

100 - 50 - 33.3 = x

 

100 - 83.3 = x

x = 16.7%

 

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