Let A and B be two finite disjoint sets such that n (A  B) = 400, n(A) = 250. Find n(B).

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

We know that:
If A and B are finite disjoint sets then
n(A  B) = n(A) + n(B)
 400 = 250 + n(B)
 n(B) = 150

Answered by  | 4th Jun, 2014, 03:23: PM