You can
put this solution on YOUR website!
How many tests are there to select to perform FIRST? Answer: ____
After selecting the first test, how many tests will REMAIN to select to perform
SECOND? Answer: ____
After selecting the first and second tests, how many tests will still REMAIN to
select to perform THIRD (and last)? Answer: ____.
Multiply those three answers together. That will be the final answer.
Edwin