If `n (A)=8 and n (A nnB)=2,` then `n[(AnnB)' nn A]` is equal to

If n(A) = 8 and n(A nn B) = 2 , then n((A nn B)' nn A) is equal to a)2 b)4 c)6 d)8

If n(AuuBuuC) + n(AuuBuuC)' = 50, n(A)=10, n(B)=15, n(C)=20,n(AnnB)=5,n(BnnC) =6, n(CnnA)=10 and n(AnnBnnC)=5, then n(A uu B nn C)' is equal to

If n(U)=700, n(A)=200, n(B)=240 and n(AnnB)=100 , then n(A^(C )uuB^(C )) is equal to