Question

If seven people meet each other and each shake hands only once with each of the others, how many handshakes happened?

Answer 1

Answer:

alright so every person shook 7 people's hands so 7x and there are 7 people so 7(7) and that is 49

Answer 2

If it’s only 7 ppl you would have to double the amount of people meaning that 14 people shook each other’s hands but not quite cause they shook each other’s hands 7•14=98/4=25