Question: A computer password is required to be 5 characters long. How many passwords are possible if the password requires 1 letter(s) followed by 4

A computer password is required to be 5 characters long. How many passwords are possible if the password requires 1 letter(s) followed by 4 digits (numbers 0-9), where no repetition of any letter or digit is allowed? There are possible passwords. Question Help: Video Message instructor

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