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At a party everyone shook hands with everybody else There were 66 handshakes How many people were at the party?
Each handshake involved 2 people so 12 guests: Guest A made 11 handshakes, B 10 having already been counted as an A-B handshake, C 9 etc for 2 ppl thr is 1 hand shakefor 3 thr is 3(1+2)for 4 thr is 6(1+2+3)hence12 ppl coz..sum of 1st 11 is 66...
There are 8 people at a party each person shakes hands with everybody else once how many handshakes are there?
28. The formula is (n * (n-1)) / 2, where n represents the number of people. You divde by 2 because each handshake covers two possibilities (ie, person #1 to person #8 is the same as person #8 to person #1).
If 20 people complete a work in 5 houshow many people are required to complete that work in 1 hour?
If the work that is required is the same amount, then the work to people ratio is 5:20. To get to 1 hour, you need to divide the amount of time by 5. Since you are going to need more people to complete the work, you then multiply the number of people by 5, and 20*5=100. Therefore, you need 100 people to complete the work in 1 hour.
How many feet in 1 yeard?
1 yard is 3 feet, if that is what you need.
If theres 66 handshakes how many people are at the party?
If there are n people who shake hands with each other exactly once, it can be observed that there are n x (n-1) handshakes. Since each handshake is counted twice here,we divide this by 2. Therefore, total number of handshakes is n(n-1)/2. In the given problem, Given: Total handshakes =66 i.e n(n-1)/2=66 n2-n =132 n2-n-132=0 (n-12)(n+11)=0 n =12 or n= -11 As handshakes cannot be negative we discard 11 . Therefore answer is , 12 people.
How many handshakes if there would be a total of 11 people in a room?
Since order doesn't matter and repetition is not allowed for this situation, we use combination. For instance, if person 1 gave a handshake with person 2, then there is no need for person 2 to do that with person 1. This is considered to be already a handshake. You get 11 choose 2 = 55 handshakes.
7 people shake hands with each other how many hand shakes are exchanged?
The first guy shakes hands with 6 other people. The next guy has already shaken the first one's hand, so she has only 5 other people to handshake & so on down to the last two people with a single handshake. All together there are 6 + 5 + 4 + 3 + 2 + 1 = 21 handshakes
Seven different people get together in a place Each person should handshake only once with all others Find the total number of handshakes?
Seven different people get together in a place. Each person should handshake only once with all others. Find the total number of handshakes? the first one handshake with 6 person, and second one handshake with remaining 5, and so on....6+5+4+3+2+1=21
What are the release dates for Mike Diva Presents - 2012 Secret Handshake 1-11?
Mike Diva Presents - 2012 Secret Handshake 1-11 was released on: USA: 11 June 2012
What are the release dates for Hank Frisco Galaxy Defender - 2011 Handshake 1-2?
Hank Frisco Galaxy Defender - 2011 Handshake 1-2 was released on: USA: 11 July 2011
At a party everyone shook hands with everybody else There were 66 handshakes How many people were at the party?
Each handshake involved 2 people so 12 guests: Guest A made 11 handshakes, B 10 having already been counted as an A-B handshake, C 9 etc for 2 ppl thr is 1 hand shakefor 3 thr is 3(1+2)for 4 thr is 6(1+2+3)hence12 ppl coz..sum of 1st 11 is 66...
What are the release dates for Power Rangers R-P-M- - 2009 Handshake 1-5?
Power Rangers R-P-M- - 2009 Handshake 1-5 was released on: USA: 28 March 2009
What are the ratings and certificates for Power Rangers R-P-M- - 2009 Handshake 1-5?
Power Rangers R-P-M- - 2009 Handshake 1-5 is rated/received certificates of: USA:TV-Y7
In the sims 3 how many people are you allowed to have?
In 1 household you need 8. But you can marry however many people you like.
There are 8 people at a party each person shakes hands with everybody else once how many handshakes are there?
28. The formula is (n * (n-1)) / 2, where n represents the number of people. You divde by 2 because each handshake covers two possibilities (ie, person #1 to person #8 is the same as person #8 to person #1).
How many people need to be on a sailing boat?
Depends on how big the boat is - 1 person to 100 people.
Examples of hard riddles or quizzes?
if there are 2 people in a room and each one shakes hands once with every other person in the room, how many hand shakes are there?... answer( 1 handshake) pretty easy isn't it? if there are 3 people in a room and everyone shakes hands with everyone else, how many hand shakes are there? answer( three handshakes) now how many handshakes will there be for 5 people in a room? its your time to shyne...
