How many possible 3 number combinations are there

- How many possible 3 letter combinations are there
- How many possible 3 digit combinations are there
- How many possible 3 digit combinations are there from 0 9
- How many possible combinations are there in a 3 number lock
- How many possible combinations are there for a 3 digit number
- In a 3 bit binary number how many possible combinations are there
- Formula of combination