Jasbhoo3587 Jasbhoo3587

19-01-2018
Mathematics

contestada

5 people attend a party. if each person at the party shakes hands with everyone else, how many handshakes will be made?

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magicistotesrea magicistotesrea

20-01-2018

10 handshakes.
(n(n-1))/2
(5(5-1))/2
(5*4)/2
20/2
10

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