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A = 180, B = 158, c = 190, A∩B = 13, A∩C = 25, B∩C = 40, and A∩B∩C = 25. ...
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`n[(AnnC)uu(B)] = n(AnnC)+n(B)- n(AnnCnnB)`
If you draw a venn diagram you cansimply see the above fact
`n[(AnnC)uu(B)] = 25+158 -25 = 158`
Posted by thilina-g on May 3, 2012 at 4:34 AM (Answer #1)
High School Teacher
A intersection B = 13
A interesection B interction C = 25
This cannot be possible
A intersection B must be greater or equal to 25
then only we can answer
or with out above analysis we can tell the answer is 158
Posted by chandramohan on May 3, 2012 at 4:07 AM (Answer #2)
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