Assuming that everyone kisses everyone else only one time each, the first person has to kiss all 99 others. The second one only has to kiss the remaining 98, the third the remaning 97 and so on, so you'd have to add 99+98+97+96+95... etc.
You can add the opposing numbers up to 100 each (99+1, 98+2, 97+3, 96+4) and count how many 100 result.
The final number of kisses would then be 4950.
3. AB, BC and CA.
Ah, what a lovely thought! When each person shakes hands with every other person at the party, it creates a beautiful connection. In this case, with 3 people at the party, there will be 3 handshakes in total. Just imagine the joy and warmth shared in those simple gestures!
If there are seven people, then the number of handshakes is 7*6/2 = 21
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.
29 People including You.
This is a variation on the handshake problem which say if there are n people at a party and every one shakes hands with every other one, how many handshakes are there? It is well know that kisses in fact are cleaner than handshakes which to tend to pass diseases. So thanks for a cleaner version of this classic math problem! n(n-1)/2 is the formula for the number of handshakes OR kisses for n people at a party. If you case, 15x14/2 which is 15x7 or 105.
People
EVERY party is for the people! Make sure to shop Party City for all your party needs!
15
15 (15 * 15 - 15)/2 = 105
10 times
3. AB, BC and CA.
populist party
populist party
Nazis were members of a political party. It is true that after the Nazis were elected into government, other parties ceased to exist, more people joined the Nazi party, but still not everyone.
Anywhere, mainly at school or a party
Life with Derek - 2005 Two Kisses One Party 4-1 was released on: USA: 19 July 2008