Set Theoryhard
0:00.0

If n(A)=25,n(B)=30,n(C)=20,n(AB)=10,n(BC)=8,n(AC)=7n(A) = 25, n(B) = 30, n(C) = 20, n(A \cap B) = 10, n(B \cap C) = 8, n(A \cap C) = 7, and n(ABC)=3n(A \cap B \cap C) = 3, what is n(ABC)n(A \cup B \cup C)?