Question

Given trhat n(u)=50, n(A)=25, n (B)=20

a. find the greatest value of n(A intersection B)
b. find the least value of n(A intersection B)
c.find the greatest value of n(A union B)
d. find the least value of n ( A union B)

Answer 1

a. 20
b. 1 or 0
c. 45-n(intersection)
intersection = max20 ,min0
d. 20