Question

A password consists of 2 letters followed by 2 digits. How many different passwords can be formed?

Answer 1

Solutions 

We know that there are 26 letters and there are 10 digits.

Different combos possible are 26 * 26 * 10 * 10  

0,1,2,3,4,5,6,7,8,9

Count ---> 1,2,3,4,5,6,7,8,9,10 

=  67,600