there are 21 people at Thanksgiving dinner , if each person hugs everyone else only once , how many hugs take place at the party?

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there are 21 people at Thanksgiving dinner , if each person hugs everyone else only once , how many hugs take place at the party?

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    2021-09-10T19:21:15+00:00

    There are 21 people, everyone hugs each other, but the person hugging cant hug themself, so (21*21)-21

    (21*21) -21 = 441

    441-21=420

    All credit to sulgeorge

    0
    2021-09-10T19:21:15+00:00

    There are 21 people, everyone hugs each other, but the person hugging cant hug themself, so (21*21)-21

    (21*21) -21 = 441

    441-21=420

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