05/31/2020 (2011: National Sprint Round, Problem 3)
Q: The enrollment at West Middle School is 450 students. If 350 students participate in sports, 125 students participate in fine arts and 50 students participate in both sports and fine arts, how many students do not participate in either sports or fine arts?
Total Students - ( Students in X + Students in Y - ( Students in X and Y)) = Students in Neither X Nor Y
450 - (350 + 125 - 50) = Students in Neither Sports Nor Fine Arts -->
25 = Students in Neither Sports Nor Fine Arts
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