Question 1114856
Five different algebra textbooks, two different calculus textbooks, and four different geometry textbooks are to be arranged on a shelf. How many different arrangements are possible if the books of each subject must be kept together? 
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# of arrangements within each set:: 5!*2!*4! = 120*2*24 = 5760
# of arrangements of the sets:: 3! = 6
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Ans: 6*5760 = 34560
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Cheers,
Stan H.
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