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OpenStudy (perl):
30 people in a room. 22 like red, 23 like blue. 24 like black. what's the minimum number of people that like all 3 colors simultaneously
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OpenStudy (paxpolaris):
|dw:1414129295011:dw|
OpenStudy (dan815):
perk i got 9
OpenStudy (perl):
this is teddy's answer teddyiswhatshecallsme you do 22+23-30=15 -> minimum 15 people like red AND blue then 15+24-30=9 -> minimum 9 people like (red AND blue) AND black
OpenStudy (perl):
|dw:1414130261430:dw|
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