Question

If n(A) = 10, n(An B)=4, and n(AUB) = 18. then determine n(B)​

Answer 1

Answer:

n(B)=n(AnB)+n(AUB)-n(A)

=4+18-10

=12

Answer 2

Answer:

Step-by-step explanation:

n(AUB) =n(A) +n(B)-n(AnB)

18= 10+n(B)-4

n(B)=12