In order to calculate how many codes can be generated, let's find out the number of possible values for each letter and number:
- First letter: 24 possible values
- Second letter: 24 possible values
- Third letter: 24 possible values
- Number: 6 possible values
Now, to find the number of codes, we just need to multiply the number of possible values of each letter and number. So we have:
So there is a total of 82,944 codes that can be generated.