Question

If n(A) = 60 , n(B) = 50 , and n(U) = 100, then find A∩B

Answer 1

Answer:

n(A∩B) = 10

Step-by-step explanation:

n(A∪B) = n(A) + n(B) - n(A∩B)

n(A∩B) = n(A) + n(B) - n(A∪B)

n(A∩B) = (60 + 50) - 100

n(A∩B) = 110 - 100

n(A∩B) = 10