College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 9, Counting and Probability - Section 9.1 - Counting - 9.1 Exercises - Page 658: 77

Answer

1162800

Work Step by Step

We have 20 choices for the secretary, then 19 choices for the chair, and then $C(18,4)$ for the indistinguishable remaining members. $$20*19*C(18,4)= 1162800$$
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