victoriiabruno4 victoriiabruno4

10-11-2018
Mathematics

contestada

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

Respuesta :

Аноним Аноним

10-11-2018

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

Answer Link

Аноним Аноним

10-11-2018

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

Answer Link

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