Posted by Aisha on .
The registration code for a new softwear game you purchased consists of a string of 3 letters followed by 5 digits. How many different registration codes are possible? If you lost your registration code and had to quess, what is the probability that you will answer the correct code?

Math 
bobpursley,
wouldnt it be 26^3 * 10^5?

Math 
aisha,
thank you very much