SOLUTION: An inspector must select 3 tests to perform in a certain order on a manufactured part. He has a choice of 10 tests. How many different ways can he perform the 3 tests?

Question 1188955: An inspector must select 3 tests to perform in a certain order on a manufactured part. He
has a choice of 10 tests. How many different ways can he perform the 3 tests?

Answer by Edwin McCravy(20054) (Show Source): 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

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