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there are 50 peoples at a meeting. They each shake hands with everyone else. How many handshakes were there?​
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there are 50 peoples at a meeting. They each shake hands with everyone else. How many handshakes were there?​

User Oleksandr Makarenko
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10 votes

2450

Exclude yourself as a group member then multiply the rest of the group by the whole group.

User Shankar Guru
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