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Numerical Ability
Permutation and Combination
It was found that there were a total of 46 people at a company dinner. Each of the persons shook hands with all other paersons. What would be the total number of hand shakes?
Read Solution (Total 8)
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- n(n-1)/2, n is the no. of people
- 10 years agoHelpfull: Yes(10) No(1)
- 46C2=1035 handshakes
- 8 years agoHelpfull: Yes(7) No(0)
- total=46 people
46 people give s.h to 45 people
so 46*45=2070 - 10 years agoHelpfull: Yes(2) No(8)
- The formula is- n(n-1)/2;
here n=46 (given)
so, n(n-1)/2= 46(46-1)/2;
46*45/2= 1035.
Total number of handshakes 1035. - 8 years agoHelpfull: Yes(1) No(0)
- People at Party Number of Handshakes
2 1
3 1 + 2 = 3
4 1 + 2 + 3 = 6
5 1 + 2 + 3 + 4 = 10
6 1 + 2 + 3 + 4 + 5 = 15
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.
. n(n-1)
n 1 + 2 + ...+ (n-1) = --------
2
ans=1035 - 8 years agoHelpfull: Yes(1) No(0)
- plz ..provide the solutiion....tmrw i have a xam...ayshu.530@gmail.com
- 11 years agoHelpfull: Yes(0) No(0)
- n(n-1)/2 is the formula,where n is no.of people
if you have doubt with this, just try with 2 or 3 people you'll get it. - 8 years agoHelpfull: Yes(0) No(0)
- 46 c 2=(45*46)/2 = 1035
- 7 years agoHelpfull: Yes(0) No(0)
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