Suppose that in a particular class of 135 students, 45 of them are majoring in math, 60 of them are majoring in communications, and 15 plan on majoring in both math and communications. How many want to major in exactly one of math or communications

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.CT: Chapter Test
Problem 2CT: A hospital cafeteria offers a fixed-price lunch consisting of a main course, a dessert, and a drink....
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Suppose that in a particular class of 135 students, 45 of them are majoring in math, 60 of them are majoring in communications, and 15 plan on majoring in both math and communications. How many want to major in exactly one of math or communications?
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