SOLUTION: You have 7 friends who want to go to a concert with you, but you only have room in your car for 2 of them. To avoid accusations of favoritism, you have your friends draw straws: Th
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Question 143974: You have 7 friends who want to go to a concert with you, but you only have room in your car for 2 of them. To avoid accusations of favoritism, you have your friends draw straws: There are 3 long and 2 short straws, and the short straws win. How many possible pairs of friends could be chosen in this way? Answer by stanbon(75887) (Show Source):
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