Math, asked by nlvraghavendra5931, 1 year ago

In a conference of 8 persons, if each person shake hand with the other one only, then the total number of shake hands shall be

Answers

Answered by Anonymous
7
Person 1: He can shake hands with 7 new people. (7)

Person 2: He can shake hands with 6 new people.(6)

Person 3: He can shake hands with 7 new people.(5)

Person 4: He can shake hands with 6 new people.(4)

Person 5: He can shake hands with 5 new people.(3)

Person 6: He can shake hands with 4 new people.(2)

Person 7: He can shake hands with 3 new people.(1)

Person 8: He can shake hands


So total handshake is 7+6+5+4+3+2+1
So it forms a A.P

Sum → n(n-1)/2
Sum →8(7)/2
Sum →56/2
Sum →23
Answered by Anonymous
1

TOTAL PERSON = 8

BY USING FORMULA = N(N-1)/2

  • n= 8

8(8-1)/2

= 8*7/2

= 56/2

= 28 Times

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