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- Jul 19, 2006
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A student has 30 books and wants to arrange them in rows (minimum 3 books in each row) with an equal number of books, how many ways can he arrange his books?
I said 4 ways, 3,10 10,3 5,6 6,5 but crack math says the answer is 6? and showed the factors I put plus 2,15 15,2 1,30 30,1 they said that out of these 8, 6 were possible??? it said minimum 3 books in each row or do I have the wrong idea??? it was test 11
I said 4 ways, 3,10 10,3 5,6 6,5 but crack math says the answer is 6? and showed the factors I put plus 2,15 15,2 1,30 30,1 they said that out of these 8, 6 were possible??? it said minimum 3 books in each row or do I have the wrong idea??? it was test 11