Answer
54 students
Work Step by Step
Computer science majors (A)= 38
Mathematics majors (B)= 23
Joint majors (A ∩ B) = 7
Total students in class (A ∪ B)= A + B - (A ∩ B) = 23 + 38 - 7 = 54
Discrete Mathematics and Its Applications, Seventh Edition
by Rosen, Kenneth
Published by
McGraw-Hill Education
ISBN 10:
0073383090
ISBN 13:
978-0-07338-309-5
Chapter 6 - Section 6.1 - The Basics of Counting - Exercises - Page 398: 52
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