A computer company uses 6 characters to create their serial number identification for products number number number letter b 11

Question

A computer company uses 6 characters to create their serial number identification for products number number number letter b 11 232 000 letter character The first 3 characters are any single digit number but no character can repeat in those first 3 characters The next two characters must be a letter and those two letters cannot be the same The last space can be any number or letter without any restriction How many unique serial numbers are possible a 24 336 000

Kunduz · Accepted Answer

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