Question

A and B are the subsets of U.If n(A)=285,n(B)=195,n(AUB)=410,n(U)=500,fi... n(A'UB')A ?

Answer 1

n(A'UB')=n(AΠB)' n(AΠB)'=n(U)-n(AΠB) n(AΠB)=285+195-410 = 480-410 n(AΠB)=70 n(AΠB)'=500-70 n(AΠB)'=430