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Grade 12th PassEngineering Entrance Exams

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

Profile image of sakshi zutshi
13 Years agoGrade 12th Pass
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1 Answer

Profile image of Yash Baheti
11 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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