SOLUTION: In a library, 4 different english books, 2 different chemistry books and 3 different mathematics books are arranged on a shelf. Determine the number of different arrangements for t

Question 261290: In a library, 4 different english books, 2 different chemistry books and 3 different mathematics books are arranged on a shelf. Determine the number of different arrangements for the 9 books if the books on each subject must be kept together
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
In a library, 4 different english books, 2 different chemistry books and 3 different mathematics books are arranged on a shelf. Determine the number of different arrangements for the 9 books if the books on each subject must be kept together
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1st: arrange the sets: 3! = 6 ways
2nd: arrange the books within each set: 4!*2!*3! = 24*2*6
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Total # of arrangements: 6*24*12 = 1728
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Cheers,
Stan H.
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