Sat Dec 04, 2010 6:11 pm by tartle 


Four people meet in a room. Each person shakes hands once with each other person.
How many hand shakes are there in all? 




Thu Dec 23, 2010 5:44 am by Rag 


:) THE ANSWER IS 10 




Wed Mar 16, 2011 5:49 pm by wesmode12 


The answer is 6. 




Fri May 27, 2011 5:57 am by ychick89c 


the answer is 12...
ex: there is guy 1,2,3, and 4
guy one shakes hands with:
12, 13, 14
thats 3 hand shakes
continue with guy 2,3, and 4. or do 3 times 4. either way you find 12 




Sun Jun 05, 2011 8:34 am by aamil4u 


I agree with wesmode. The answer is 6 




Fri Jun 17, 2011 9:36 am by einsteinager 


The answer is 6.
For those who have heard of Combinations and Permutaions, the answer [size=9]4[/size]C[size=7]2[/size]. 




Tue Jan 29, 2013 8:33 pm by Akoito 


6 only,
1st person hand shakes with 2,3,4 is equal to 3 handshakes
2nd person hand shakes with 3,4 is equal to 2 handshakes
3rd person hand shakes with 4 is equal to 1 handshake
4th person has already shook hands with all of them, so a total of 6 




Thu Apr 18, 2013 1:11 pm by archit 


i agree with einsteinager! 




Tue Apr 30, 2013 10:16 am by sheikh khaleed 


I agree with wesmode & einsteinager. The answer is 6.
if 4 persons are A,B,C,D
They will shakes their hands with each person like
AB, AC, AD, BC, BD, & CD
So if is mote than 6 time then it would be doubled. 




Sun Jan 19, 2014 3:10 am by dave08 


the answer is absolutely 12. 




Thu Feb 06, 2014 1:58 pm by praveen 


it's sure.....6 




Thu Feb 20, 2014 1:35 pm by ashta27 


People the answer is 6.
Here's a clear explanation.
There are 4 people namely A B C D.
A shakes hand with B C D.
B shakes hand with C D. (B has already shook hands with A in the line above so he won't do it again)
C shakes hand with D.
It's essential to remember that everyone shakes hands with others only once. So AB is the same as BA.
I hope it's clear.
If not I'll be happy to answer any query. 




Fri Feb 21, 2014 9:59 am by Maheshpandalath 


there will be 6 




Sat Jul 19, 2014 7:10 am by sunflash 


exactly 6 times 




Mon Jul 21, 2014 2:30 pm by jimmyz 


like the 2014 world cup, each group has 4 teams and each team played 6 times to complete the first round game! 






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