How Many Handshakes?
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|Math Forum, Ask Dr. Math Common Question|
|A selection of answers to questions such as "There are 40 people in a room. They shake each other's hands once and only once...."|
|Levels:||High School (9-12)|
|Resource Types:||Frequently Asked Questions (FAQs)|
|Math Topics:||Problem-Solving, Permutations/Combinations|
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