A club contains the President, the Secretary, and 10 other members. The club is asked to send a group of 4 representatives to a conference. Calculate the number of different ways in which the group can be formed if it must contain either the President or the Secretary, but not both.
A club contains the President, the Secretary, and 10 other members. The club is asked to send a group of 4 representatives to a conference. Calculate the number of different ways in which the group can be formed if it must contain either the President or the Secretary, but not both.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:A club contains the President, the Secretary,
and 10 other members. The club is asked to
send a group of 4 representatives to a
conference. Calculate the number of
different ways in which the group can be
formed if it must contain either the President
or the Secretary, but not both.
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