Question

A 7 character computer password is made up of 4 letters followed by 3 numbers. How many different passwords are possible?

Answer 1

Answer: 456,976,000

Explanation: For 7 character computer password to be made for

4 letters and 3 numbers.

Total Number of Alphabets =

26letters

Numbers ranges from 0-9

Therefore the possible passwords

= 26*26*26*26*10*10*10

=456,976,000

Answer 2

Answer: C 456,976,000