Answer:The number of all possible codes = 26 * 26 * 10 * 10 * 10 = 676000
Explanation:
five digit code; each code is 3 digits (0-9) followed by two letters. That's ten numbers to choose from and 26 letters in the alphabet.
The problem suggests numbers and letters can be used more than once, like having a code: 555AA
To find the number of possible codes, you multiply by the choices for each digit.
10*10*10*26*26 = 676,000