Question

If n(ξ) = 60, n(A) = 35, n(B’) = 36 and n((A ∩ B)’) = 51, find :
n(B)​

Answer 1

Answer:

n(B)=24

Step-by-step explanation:

n(A)=60,n(B')=36 and n(AnB)'=51,n(U)=60

n(B)=n(U)-n(B')

=60-36

=24