How many handshakes can 10 people do?

Instructional Plan

People	Handshakes
7	21
8	28
9	36
10	45

How many handshakes are in a group of 5?

Many of the groups will already have answers for the number of handshakes in groups of 1‑10 people….Instructional Plan.

People	Handshakes
4	6
5	10
6	15
7	21

How many handshakes does everyone in the room have?

Let’s focus on Jessica, who shakes hand with the rest of the girls. That’s two handshakes. And then there’s the other two who haven’t shook hands with each other yet, Elizabeth and Stephanie. There’s 3. Everyone shakes hands with everyone else in a room. Total number of handshakes is 136. What is the total number of people in the room?

How many people can a shake hands with?

A can shake hands with B,C,D,E,F,G,H,I,J that is 9 persons. Similarly B can shake hands with 8 people (As A has already shook hands with B, there is no need for B to shake hands with A again ).

How many handshakes before the group of people left the party?

At a party, everyone shook hands with everybody else, but then 10 people left the room shortly after. There were 102 handshakes before the group of people left. How many people were at the party?

How many handshakes are there in a square with 4 points?

In the same way if you had 4 points you would need to draw 6 lines (draw a square and both it’s diagonals, you will find all points are connected) Where n is the number of points or in this case the number of people and A is the number of lines drawn to interconnect all the points or in this case the number of handshakes. So your answer is 10.