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Keith must choose a 3 letter password for a computer account. he can use any of the 26 upper case letters of the alphabet but he cannot reprqt repeat letters. how many passwords…

Keith must choose a 3 letter password for a computer account. he can use any of the 26 upper case letters of the alphabet but he cannot reprqt repeat letters. how many passwords…
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Keith must choose a 3 letter password for a computer account. he can use any of the 26 upper case letters of the alphabet but he cannot reprqt repeat letters. how many passwords are possible

User Katrasnikj
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1 Answer

6 votes
The first letter can be any of 26.
The second letter can be any of the remaining 25.
The third letter can be any of the remaining 24.

26*25*24 = 15,600 passwords are possible
User Donturner
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