You have x number of people in a room. Everyone in the room shakes everyone elses hand once and once only. there are 750 total handshakes, how many people are in the room?
no because 25 peeps can only shake 24 hands which multiplys to 60025.....
Total number of handshakes = X(X-1)/2
(you divide by 2 because you dont count handshakes between the same people twice.
750= x(x-1)/2
1500 = x(x-1)
1500 = x^2 - x
x^2 - x - 1500 = 0
solve for x
fdc... you've got like 38 people in the room plus a guy with just a left arm, unable to shake hands with everyone else.
39...it's late and I'm bored.
its also wrong but thanks anyway I appreciate the help, and no Marine I can take myself by the hand thank you very much. Who knows where yours has been:shrug:
Unless you're running for office..........who gives a shit?
:shrug:
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