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

Question

3 years ago

6

?

2 answers:

pav-90 [236] · Answer 1 · 2022-04-13T05:16:11+03:00

8 0

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

Salsk061 [2.6K] · Answer 2 · 2022-04-13T03:57:06+03:00

4 0

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