Question

Suppose a company needs temporary passwords for the trial of a new time management software. Each password will have two letters followed by two digits. The digits 7,8 , and 9 will not be used. So, there are 26 letters and 7 digits that will be used. Assume that the letters and digits can be repeated. How many passwords can be created using this format

Answer 1

33124 passwords can be created using this format

Explanation:

The password will have the following format:

L - L - D - D

There are 26 letters and 7 digits, so the number of possible outcomes in each position is:

26 - 26 - 7 - 7

How many passwords can be created using this format?

26*26*7*7 = 33124

33124 passwords can be created using this format