SOLUTION: A library has 3 books from each of 5 different authors. How many ways can the library arrange the books on the shelf if books by the same author must be placed together?

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Question 903316: A library has 3 books from each of 5 different authors.
How many ways can the library arrange the books on the shelf if books by the same author must be placed together?


Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
15 books
authors together: 3 units
How many ways can the library arrange the books on the shelf if books by the same author must be placed together
3!
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