You take a multiple choice test with 6 questions, each of which has 3 choices with one correct choice. [Hint: You can enter the answers as either numbers or formulas as in 5*6*7 or in 1^4.] The number of possible filled-out answer sheets is The number of those that have every single answer wrong is Check Clear Help! Check Clear Help! Now let's look at a situation that calls for combining both principles. The following is similar to Example 1 in Finite Mathematics: