Question

If n(U)=100, n(A)=50, n(B)=20, n(A∩B)=10 then n(A'∩B') is

Answer 1

Answer:

your Answer is

Answer 2

Answer:

40

Step-by-step explanation:

n(μ)=100, n(A)=50, n(B)=20 and n(A∩B)=10 

n[(A∪B)c]=n[μ−(A∪B)]

=n(μ)−n(A∪B)

=100−[n(A)+n(B)−n(A∩B)]

=[100−[50+20−10]]

=(100−60)

=40