Question 520202: A company's computer password must consist of 4 letters with no repetition of letters.
How many possible passwords are there?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! A company's computer password must consist of 4 letters with no repetition of letters.
How many possible passwords are there?
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If it's not case sensitive, ie, if a is the same as A, b = B, etc, then it's
26*25*24*23 combinations.
you can multiply that.
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