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Given this venn diagram: U=500, A=180 (A as a whole), B=158 (B as a whole), C=215 (C as...

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spock8 | Student, Undergraduate | Honors

Posted May 25, 2012 at 7:30 PM via web

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Given this venn diagram: U=500, A=180 (A as a whole), B=158 (B as a whole), C=215 (C as a whole), A∩B∩C=25, A∩B=13, A∩C=50, B∩C=40

Determine (A∩B∩C)’

Justify using set operations

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thilina-g | College Teacher | (Level 1) Educator

Posted May 26, 2012 at 5:14 AM (Answer #1)

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We can write U as union of following complementary sets.

`U = (A nn B nn C) uu (A nn B nn C)'`

`500 = 25+(A nn B nn C)'`

Therefore,

`(A nn B nn C)' = 500- 25 = 475`

`(A nn B nn C)' = 475`

 

 

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