# SOLUTION: an identification code is to consist of three letters followed by four digits. How many different codes are possible if repetition is permitted?

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 Click here to see ALL problems on Proportions Question 405657: an identification code is to consist of three letters followed by four digits. How many different codes are possible if repetition is permitted?Answer by stanbon(57354)   (Show Source): You can put this solution on YOUR website!an identification code is to consist of three letters followed by four digits. How many different codes are possible if repetition is permitted? ----- Code: LLLNNNN There are 26 letters There are 10 digits --- # of codes = 26^3*10^4 = 175,760,000 ------ Cheers, Stan H. ======