Respuesta :
There are 6720 different ways of creating a password using the letters A to H
How to determine the number of ways?
The given parameters are:
- Usable letters: A to H i.e 8 letters
- Length of password = 8
- No repetition of character
Since the characters cannot be repeated, then we have the following sequence
- The first letter can be any of the 8 letters
- The second can be any of the remaining 7 letters
- The third can be any of the remaining 6 letters
- The fourth can be any of the remaining 5 letters
- The fifth can be any of the remaining 4 letters
So, the number of ways is:
Ways = 8 * 7 * 6 * 5 * 4
Evaluate
Ways = 6720
Hence, there are 6720 different ways of creating a password
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