Register
Suppose there are 15 people in a room. each of those 15 shakes hands exactly once with everyone else. how many handshakes take place?
71.8k views
5 votes
Suppose there are 15 people in a room. each of those 15 shakes hands exactly once with everyone else. how many handshakes take place?

User MagicMicky
by
8.1k points

1 Answer

5 votes
105. Each of the 15 people shakes hands with another 14 people But 1 person shaking hands with another person is the same as the other person shanking hand with that person so divide by half. 15*14=210/2=105

User Searene
by
8.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.8m questions

11.4m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!