SOLUTION: in how many orders can 7 chapters be arranged in the index of a textbook if the chapter on probability is to be listed in the middle of the series of chapter?
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Question 499067: in how many orders can 7 chapters be arranged in the index of a textbook if the chapter on probability is to be listed in the middle of the series of chapter?
Answer by chessace(471) (Show Source): You can put this solution on YOUR website!
Just regard the other 6 as fill 6 places (3 on either side).
6! = 720.
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