Ask Question
3 February, 18:52

How many 5-letter passwords can be created if no letter can be used twice within the password?

+3
Answers (2)
  1. 3 February, 20:34
    0
    If there are 5 letters used only, then 5! or 5*4*3*2 = 120

    If all 26 letters of the alphabet may be used for the code, then:

    26*25*24*23*22

    If you mean letters of the alphabet, and not case sensitive, it's 26*25*24*23*22

    = 7893600
  2. 3 February, 21:02
    0
    26*25*24*23*22=7893600

    or you can use

    26! / (26-5) !=7893600
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “How many 5-letter passwords can be created if no letter can be used twice within the password? ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers