SOLUTION: Hello, can you help me with this problem, I sorry I been out of school for 15 years and I just lost with probability problems. An identification code is to consist of six letter

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Question 363733: Hello, can you help me with this problem, I sorry I been out of school for 15 years and I just lost with probability problems.
An identification code is to consist of six letters followed by three digits. How many different codes are possible if repetition is permitted

Thank you

Answer by amoresroy(361) About Me  (Show Source):
You can put this solution on YOUR website!
Solution
Number of possible combinations = 26^6 * 10^3
= 308,915,776,000
Three hundred eight billion nine hundred fifteen million seven hundred seventy six thousand
26 represents the number of letters in the alphabet
You multiply 26 six times since repetition is allowed.

10 represents the number of digits from 0 to 9
You multiply 10 3 times since repetition is allowed.
You multiply both product to get the number of possible combinations.