Question: Question 1 3 ( 8 points ) : It takes two to tango: a lead and a follower. In a room of 1 6 people,
Question points: It takes two to tango: a lead and a follower. In a room of people, know how to lead, know how to follow, a few can perform both roles, and do not dance at all. How many dierent couples of a lead and a follower would be possible to form from these people?
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