SOLUTION: A department store has 8 doors. In how many ways can one enter and leave the store a.) by any door? b.) without passing through the same door twice?

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Question 1004857: A department store has 8 doors. In how many ways can one enter and leave the store
a.) by any door?
b.) without passing through the same door twice?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A department store has 8 doors. In how many ways can one enter and leave the store
a.) by any door?
8*8 = 64
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b.) without passing through the same door twice?
8*7 = 56