Mark the correct alternative in the following: Let be the universal set containing 700 elements. If A, B are sub-sets of such that n (A) = 200, n (B) = 300 and n =100. Then, n =

Question

Philoid · Accepted Answer

Here, n(A)=200 , n(B)=300 , n(A⋂B)=100,n(U)=700

n(A⋃B)=n(A)+n(B)-n(A⋂B)

=200+300-100

=400

n(A'⋂B' )=n(U)∖n(A⋃B)

=700-400

=300

Mark the correct alternative in the following:Let be the universal set containing 700 elements. If A, B are sub-sets of such that n (A) = 200, n (B) = 300 and n=100. Then, n=

Mark the correct alternative in the following:
Let be the universal set containing 700 elements. If A, B are sub-sets of such that n (A) = 200, n (B) = 300 and n=100. Then, n=