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[" Consider that "n(S)" represents the n...

[" Consider that "n(S)" represents the number of "],[" elements in set "S" .If "n(A uu B uu C)=40" ,"],[[n(A nn B'nn C')=5,n(B nn A'nn C')=10],[n(C nn B'nn A')=6" then number of elements which "],[" belongs to at least two of the sets is "]]

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