Module 8: Lesson 2

 

Self-Check 3

2. 12P6 + 15P6 or 665 200 + 3 603 600 = 4 268 880
   
   Notice in this calculation that you added the number of ways the people could be arranged on the 12-passenger bus to the number of ways they can be arranged on the 15-passenger bus. This calulation was made because the passengers can all ride on the 12-passenger bus or they can all ride on the 15-passenger bus.

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