At a party, everyone shook hands

At a party, everyone shook hands with everybody else. There were 66 handshakes. How many people were at the party?

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Vineet Patawari

Hi, I'm Vineet Patawari. I fell in love with numbers after being scared of them for quite some time. Now, I'm here to make you feel comfortable with numbers and help you get rid of Math Phobia!

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