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You are arranging 7 books in a row on a shelf. one of the books is a dictionary and must go in the middle. how many ways can the books be arranged?
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You are arranging 7 books in a row on a shelf. one of the books is a dictionary and must go in the middle. how many ways can the books be arranged?

User Pingoo
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The other 6 books can be arranged in 6 ways

= 6*5*4*3*2*1 = 720 ways answer
User Tyrone Slothrop
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