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If you have 66 shake hands how many people in the party?

Anonymous

∙ 12y ago

Updated: 9/22/2023

If there are n people, you have n*(n-1)/2 handshakes

That gives the equation n*(n-1)/2 = 66

or n*(n-1) = 132

n2 - n - 132 = 0

(n - 12)*(n + 11) = 0

The solution to this quadratic are n = 12 or n = -11

Since the number of people cannot be negative, n must be 12.

Wiki User

∙ 12y ago

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If there are 100 people at a party and they all shake hands once how many hand shakes will there be?

4950

If 5 people meet and all shake each others hands how many handshake will there be?

20 ; 80 (assuming they shake both hands)

How many handshakes are there if 200 people all shake hands?

4950

If 99 people handshake how many handshakes will there be?

Since it takes two to shake hands, no odd number of people can handshake, since one must be left out. Therefore 99 people cannot shake hands. Unless "handshake" means something unusual here, which seems unlikely, as it is the only handshaking activity where you can count the handshakes. * * * * * What utter nonsense! 3 people: A, B and C can shake hands. AB shake hands, AC shake hands and BC shake hands. And the last time I looked 3 was still classified as an odd number. The correct answer is 99*98/2 = 4851

There are 9 people they all shake hands how many hand shakes are there?

36. Everybody shakes 8 hands but each shake counts for 2 people. So 9*8/2=36.

If you have 66 shake hands how many people in the party?

What else can I help you with?

If there are 100 people at a party and they all shake hands once how many hand shakes will there be?

If 5 people meet and all shake each others hands how many handshake will there be?

How many handshakes are there if 200 people all shake hands?

If 99 people handshake how many handshakes will there be?

There are 9 people they all shake hands how many hand shakes are there?

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