# Finite Math

posted by
**anonymous**
.

Sizes of

disjoint subsets of a universal set. Assume that A and B are disjoint subsets of U, and that n(U)=95, n(A)=30,and n(B')=61.

Find n(A¿B').

posted by
**anonymous**
.

Sizes of

disjoint subsets of a universal set. Assume that A and B are disjoint subsets of U, and that n(U)=95, n(A)=30,and n(B')=61.

Find n(A¿B').