Question

Integer type questions -
12) If n(u)=30,n=(A)=10,n(B)=15,n((μ-A))​

Answer 1

Answer:

n(A') = 10

n(U) - n(A) = 10

n(A) = 25

n(B') = 15

n(U) - n(B) = 15

n(B) = 20

n(A∪B) + n(A∩B) = n(A) + n(B)

n(A∪B) = 30