Question

For some particular website, the password must start with A or B. Then there must be 6 more charaters, and each of those characters may be a numeric digit or a letter of the alphabet. How many different passwords are possible?

Answer 1

There are approximately 4,353,564,672 different passwords possible.

Explanation:

A or B = 2

36 possible options for each of the 6 characters.

2 x 36 x 36 x 36 x 36 x 36 x 36 = 4,353,564,672

There are approximately 4,353,564,672 different password combinations possible.