In a group of 20 people, how long will it take each person to shake hands with each of
Chapter 11, Problem 79(choose chapter or problem)
In a group of 20 people, how long will it take each person to shake hands with each of the other persons in the group, assuming that it takes three seconds for each shake and only 2 people can shake hands at a time? What if the group is increased to 40 people?
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