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Grade: 12th Pass

                        

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

8 years ago

Answers : (1)

Yash Baheti
IIT Roorkee
askIITians Faculty
97 Points
							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
5 years ago
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