How many permutations of the 26 different letters of the alphabet contain (a) Either the pattern OUT

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How many permutations of the 26 different letters of the alphabet contain
(a) Either the pattern "OUT" or the pattern "DIG"?
(b) Neither the pattern "MAN" nor the pattern "ANT"?

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Discrete and Combinatorial Mathematics An Applied Introduction

ISBN: 978-0201726343

5th edition

Authors: Ralph P. Grimaldi

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Question Posted: Jun 21, 2016 08:13 AM

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How many permutations of the 26 different letters of the alphabet contain (a) Either the pattern OUT

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a There are 24 permutations containing each of the patterns O U T and D I G There are 22 permutatio...View the full answer

Discrete and Combinatorial Mathematics An Applied Introduction

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