SOLUTION: A sales man has 8 articles to display. In how many ways can he arrange his article?

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Question 217027: A sales man has 8 articles to display. In how many ways can he arrange his article?
Answer by shymeerab(21) About Me  (Show Source):
You can put this solution on YOUR website!
he can display his articles in 256 different ways i use a formula here
2^n where n=8.now u can easily solve every problem of this type.