Question

if an ( A) = ,n ( b) =40 n ( Aub =50 and n ( b') = 25 find n ( Aub) and n ( u )

Answer 1

Step-by-step explanation:

(i) n(A ∩ B) = n(A) + n(B) – n(A ∪ B) n(A ∩ B) = 25 + 40 – 50 = 65 – 50 = 15 n(U) = n(B) + n(B’) = 40 + 25 = 65 (ii) n(U) = n(B) + n(B’) n(A ∩ B) = n(A) + n(B) – n(A B) n(B) = n(A ∪ B) + n(A ∩ B) – n(A) = 500 + 50 – 300 = 250 n(U) = 250 + 350 = 600Read more on Sarthaks.com - https://www.sarthaks.com/960210/i-if-n-a-25-n-b-40-n-a-b-50-and-n-b-25-find-n-a-b-and-n-u-ii-if-n-a-300-n-a-b-500-n-a-b-50?show=960213#a960213