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How Many Handshakes?

How Many Handshakes?. by D. Fisher. Handshakes for each Person. Total Number of Handshakes. Number of People. How many handshakes for 2 people?. 1. How many handshakes for 3 people?. How many handshakes for 3 people?. 3. How many handshakes for 4 people?.

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How Many Handshakes?

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  1. How Many Handshakes? by D. Fisher

  2. Handshakes for each Person Total Number of Handshakes Number of People

  3. How many handshakes for 2 people? 1

  4. How many handshakes for 3 people?

  5. How many handshakes for 3 people? 3

  6. How many handshakes for 4 people?

  7. How many handshakes for 4 people? 6

  8. How many handshakes for 5 people?

  9. How many handshakes for 5 people? 10

  10. How many handshakes for 6 people? 15

  11. How many handshakes for 7 people? 21

  12. How many handshakes for n people? Find the formula.

  13. Handshakes for each People Total 1 1 2 3 2 3 4 3 6 5 4 10 6 5 15 7 6 21 8 7 28 n(n-1) n (n-1) 2

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