Mathematics
Mathematics, 04.12.2019 19:31, rhiannonwheatcr4468

There are 30 people at a meeting, they each shake hands with everyone. how many
handshakes were there? hint: think "the number of combinations of 30 people at a
meeting giving handshakes to each other 2 at a time."

answer
Answers: 2

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There are 30 people at a meeting, they each shake hands with everyone. how many
handshakes wer...

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