Question

d)

e) If no(A) = 12, no(B) = 15, n(AUB) = 11 and n(U) = 45, find:
(i) n(AUB) (ii) n(AnB) iii) n(A) (iv) n(B)

Answer 1

Answer:

I) n(AUB) =n(A) +n(B) =12+15=27

II) n(AnB) =n(A) -n(B) =12-15=-3

III) n(A) =12

iv)n(B) =15