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Find the number of permutations of the first eight letters of the alphabet taking five letters at a time.

Find the number of permutations of the first eight letters of the alphabet taking five letters at a time.
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Find the number of permutations of the first eight letters of the alphabet taking five letters at a time.

User Amerdidit
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1 Answer

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P(n,r)=P(8,4)=8!(8−4)! = 1680
User Gnicholas
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