Question

If n (A ∪ B) =50 , n (A) =15 , n(B) = 21 , n(C) = 18 , n (A ∩ B) = 5 , n (B ∩ C) =6 , n(C ∩ A ) = 7 , then n (A ∩ B ∩ C) =​

Answer 1

n(A n B nC)=n(A)+n(B)+n(C)-n(A U B U C)

Step-by-step explanation:

more calculate yourself if not able to then tell me