If `n((c-A)nn(C-B))=30 , n(C)=40 , n(AnnC)=5, n(BnnC)=6`, then

If n(AuuBuuC)+(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(AuuBuuC)' is equal to A)21 B)20 C)22 D)19

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

Let A ,B ,C are three sets such that n(A)=25 ,n(B)=20 ,n(C)=27 ,n(AnnB)=5,n(BnnC)=7a n d AnnC=varphit h e nn(AuuBuuC)= 60 2. 65 3. 67 4. 72 5. 56

If n(AuuBuuC)=100,n(A)=4x,n(B)=6x,n(C)=5x,n(AnnB)=20,n(BnnC)=15,n(AnnC)=25 and n(AnnBnnC)=10 then the value of x is .

Let A,B,C are three sets such that n(A)=25,n(B)=20,n(C)=27,n(A nn B)=5,n(B nn C)=7andA nn C=varphi the nn(A uu B uu C)60.653.674.725.56

If n (AnnB)=10, n (BnnC) =20 and n(AnnC)=30, then the greatest possible value of n(AnnBnnC) is