math
posted by Anonymous .
in a class of 50 students, 29 are democrats, 11 are business majors, and 5 of the business majors are democrats. If one student is randomly selected, find the probability of
A. choosing a democrat who is not a business major
B. choosing a student who's neither a democrat nor a business major

What about the remaining 5 students?
25 + 11 + 5 ≠ 50
A. 29/50
B. 5/50 = 1/10