Answer
$52$
Work Step by Step
According to the picture: $n(A \cup B \cup C)=4+15+3+5+2+10+2+15-n(\overline{A}\cap\overline{B}\cap\overline{C})=4+15+3+5+2+10+2+15-(4)=52.$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 13 - Counting and Probability - 13.1 Counting - 13.1 Asses Your Understanding - Page 847: 22
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