Answer: 960
Step-by-step explanation:
The first digit can be filled by letter A to F= 6 ways
The second digit will be filled by letter A to F or numeral 0-9= 6+10= 16 ways
The third digit will be filled by number 0 to 9= 10 ways
So total 3 digit hexadecimals are= 6 x 16 x 10 = 960
