Question
Mathematics Question on Sets
Let A and B be subsets of the universal set U. If n(A) = 24 , n (A∩B)=8 and n(U) = 63, then n( A'∪B') is equal to
A
43
B
55
C
35
D
32
E
45
Answer
55
Explanation
Solution
The correct option is (B): 55
Let A and B be subsets of the universal set U. If n(A) = 24 , n (A∩B)=8 and n(U) = 63, then n( A'∪B') is equal to
43
55
35
32
45
55
The correct option is (B): 55