mpzpowell5832 mpzpowell5832
  • 23-08-2017
  • Mathematics
contestada

Consider a group of 20 people. if everyone shakes hands with everyone else, how many handshakes take place?

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bella22c
bella22c bella22c
  • 23-08-2017
400 handshakes maybe because there are 20 people who greet each other, so it's 20×20
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