If each member in a party of 20 friends shakes hand with every one in the party, find the total number of hand shakes.
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If there are a total of 20 people in a party and each one of them shakes hand with the rest,
it will be 1 shaking hand with 19.
But total handshakes will be 20×19.
And your answer is 380 handshakes.
I hope that my answer is correct.
it will be 1 shaking hand with 19.
But total handshakes will be 20×19.
And your answer is 380 handshakes.
I hope that my answer is correct.
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