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.

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) (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.

RELATED QUESTIONS
Is there a difference in number of combinations for the two passwords: PASSWORD A 8... (answered by Edwin McCravy)

a web designer is trying to put 4 characters on a page. the space occupied by character 2 (answered by stanbon)

You are asked to create a 5-character password and each character may be any of the 26... (answered by jim_thompson5910)

a computer password must be 5 characters long. the first character must be a capital... (answered by Edwin McCravy)

The password must be 2 characters long. each character must be a letter a-z,a digit... (answered by issacodegard)

A four-character password consist of the alphabet and three different digit between 0... (answered by sudhanshu_kmr)

hi,can anyone teach me how to solve this type of question? A password for a system... (answered by Theo)

To keep computer files secure, many programs require the user to enter a password. The... (answered by sudhanshu_kmr)

each user on a computer system has a password which can be 5 to 7 characters long, where... (answered by edjones)