In how many ways can the letters of the word be arranged?

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 2CC
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Consider the word “ADDISABABA”
(i) In how many ways can the letters of the word be arranged?
(ii) In how many of these arrangements, the ‘D’s are separated?
(iii) In how many of these arrangements, the ‘A’s are separated?
(iv) In how many of these arrangements, the ‘AD’s are together?

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