SOLUTION: find the number of possible passwords for a system taking 3-5 character where at lest one of the input character is a number (0-9) and the rest from lower case English alphabet.

Algebra ->  Permutations -> SOLUTION: find the number of possible passwords for a system taking 3-5 character where at lest one of the input character is a number (0-9) and the rest from lower case English alphabet.       Log On


   

Question 1013817: find the number of possible passwords for a system taking 3-5 character where at lest one of the input character is a number (0-9) and the rest from lower case English alphabet.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
find the number of possible passwords for a system taking 3-5 character where at lest one of the input character is a number (0-9) and the rest from lower case English alphabet.
-------------
For 3 characters:
It can be NAA, ANA or AAN
10*26*26*3
For 4 characters:
10*26*26*26*4
For 5 characters:
10*26*26*26*26*5
----------------
Multiply, then add them.