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A computer password consists of a letter of the alphabet followed by 3 or 4 digits. Find the total number of passwords that can be formed

A computer password consists of a letter of the alphabet followed by 3 or 4
digits. Find the total number of passwords that can be formed

Grade:12th Pass

1 Answers

Yash Baheti IIT Roorkee
askIITians Faculty 97 Points
7 years ago
Hi,

Your quetion is bit confusing.
It seems to me that you want the formation with one letter and one digit which will be either 3 or 4.

To do this, for the alphabet we have 26 options and for the digit we have two option.
But we need to multiply one 2 as well as there order is not fixed and any of the digit or alphabet may come first.

So the answer is 2*26*2= 104 options

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