There are 26 choices for each of the three letters and 10 choices for each of the six single-digit numbers. Therefore, the total number of different entry codes that can be created is:
26^3 * 10^6 = 17,576,000,000
So, a total of 17,576,000,000 different entry codes can be created.
To create an entry code, you must first choose 3 letters and then, 6 single-digit numbers. How many different entry codes can you create?
1 answer