Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Question
A group of
7
boys and
3
girls is to be photographed.(a) How many ways can they be arranged in one row?
(b) How many ways can they be arranged with the girls in the
back
row and the boys in the
front
row?(a) What expression should be evaluated to find the number of ways the boys and girls can be arranged in one row?
7!+3!
10!
7!
3!
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