Question

A password consists of two letters of alphabet followed by three digits chosen from $0$ to $9$.Repeats are allowed. How many different possible passwords are allowed

• A. $492804$
• B. $650000$
• C. $676000$
• D. $1757600$

Answer 1

Answer: (C)

$676000$

Password : $5$ lettered

First two are alphabets

last three letters are nmbers

$26$ letters are there

$10$ digits are there

Therefore number of possible passwords

$=26\times 26\times 10\times 10\times 10=676000$