SOLUTION: Three maths books, four science books, two geography books and three history books are to be placed on a bookshelf. The books are all different.
a) In how many ways can the books
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Question 897853: Three maths books, four science books, two geography books and three history books are to be placed on a bookshelf. The books are all different.
a) In how many ways can the books be arranged on the shelf? (i got this part, its 479001600)
b) In how many ways ca the books be arranged so that the books of the same subject are grouped together?
Thank you in advance!
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
4! ways of arranging the four groups
b. 4!(3!4!2!3!)
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