Question

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?

Answer 1

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.