SOLUTION: if 43%of ccsf students own a car.21% students own a bicycle, and 48% own neither ! what percentage of ccsf student own either a car or a bicycle? what percentage of ccsf studen

Algebra ->  Probability-and-statistics -> SOLUTION: if 43%of ccsf students own a car.21% students own a bicycle, and 48% own neither ! what percentage of ccsf student own either a car or a bicycle? what percentage of ccsf studen      Log On


   



Question 628117: if 43%of ccsf students own a car.21% students own a bicycle, and 48% own neither ! what percentage of ccsf student own either a car or a bicycle?
what percentage of ccsf students own both a car and a bicycle.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The 48% that own neither can't be divided and does
not overlap with either of the others, so it's fixed
The others have to add up to 100% - 48% = 52%
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So, the percentage that must own both is
( 21% + 48% ) - 52% = 47%
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And the percentage that own either is
52% - 47% = 5%
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Check:
Does ( either ) + ( both ) + ( neither ) = 100%
( 5% + 47% + 48% = 100%
OK