SOLUTION: A computer password consists of a letter of the alphabet followed by 3 or 4 digits. Find the total number of – (a) passwords that can be formed (b) passwords in which no digit r

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Question 601827: A computer password consists of a letter of the alphabet followed by 3 or 4
digits. Find the total number of –
(a) passwords that can be formed
(b) passwords in which no digit repeats
Answer by Jacksonjacob(3) About Me  (Show Source):
You can put this solution on YOUR website!
If d password is 3 digit {a} it can b formd in 6ways, if d password is 4 {a}24ways
{b}4 digits