SOLUTION: In how many ways can seven people line up at a checkout counter in a supermarket?

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Question 1118862: In how many ways can seven people line up at a checkout counter in a supermarket?
Answer by ikleyn(52861) About Me  (Show Source):
You can put this solution on YOUR website!
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7! = 7*6*5*4*3*2*1 = 5040 ways