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At a party 28 handshakes were exchanged How many people were present at the party?
Wiki User
∙ 14y ago
The underlying assumption is that each person shakes the hand of each other person. If there are "n" people, each will shake the hands of "n-1" other people. To avoid counting double, the result has to be divided by 2. Therefor, the number of handshakes is equal to n(n-1)/2. Trying this out for several values of "n" should be faster than using the quadratic formula. (If you use the quadratic formula, you will probably get a positive and a negative solution - you can discard the negative solution.)
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∙ 14y ago
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Aiden received 16 cards at a party Each person exchanged exactly 1 card with each of the other people How many people were present at the party?
17
What do you do when you know a guy likes you and you kind of like him back and you're both going to a party?
Ask him to go with you to the party
Have in future tense?
Will have.ANDwill have -- I will have a headache if you don't shut up.going to have -- We are going to have a party next week.am/is/are having -- They are having a party tonight.
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If ten people met at a party and they all exchanged handshakes how many handshakes were exchanged?
107 unique handshakes will be exchanged
If ten people are at a party and they all exchange handshakes how many hand shakes were exchanged?
If that happens you have to times ninexten and the answer would be 90 handshakes
There are 3 people at a party If each person must shake hands with every other person at the party exactly once how many handshakes will there be?
With 3 people, there are only 3 handshakes: AB, AC, and BC. Where it gets interesting is at a party with, say, 10 people ... 45 handshakes. Or in the US Senate when all 100 Senators are present ... 4,950 handshakes.
If at a party there are twelve people present Everyone has to shake hands exactly once with every other person How many handshakes are necessary?
Sixty-six unique, distinct handshakes.
there are 3 people at a party if each person mis shake hands with every person at the party exactly once how many handshakes will there be?
So, there will be 3 handshakes among the 3 people at the party.
If there 28 handshakes how many people are at the party?
29 People including You.
Aiden received 16 cards at a party Each person exchanged exactly 1 card with each of the other people How many people were present at the party?
17
If there are 8 people at a party and every person shakes hands with everyone else at the party how many handshakes will there be?
There will be 28 handshakes. If you ask each person how many handshakes they had they will tell you 7 making 7 x 8 = 56 handshakes in all. But every hand involves two people, so every handshake has been counted twice, thus there are 56 / 2 = 28 handshakes in all.
How many people are at a party with 741 handshakes if everyone shakes once?
371
At a certain part 36 handshakes were exchanged everyone shook hands exactly once how many people attended the party?
Each handshake involves two people. If everyone shook only once then there were 36 x 2 ie 72 guests.
If at a party there are a total of 741 handshakes and each person shakes hands with everyone else at the party exactly once how many people are at the party?
38
At certain party there wereb 45 handshakes Everyone shook hands with everyone else exactly once how many people attended the party?
There were ten people at the party. This is a triangular sequence starting with two people: 1, 3, 6, 10, 15, 21, 28, 36, 45, etc. There's an equation for this. With n people at the party, the number of handshakes is n(n-1)/2.
