Ten strangers attend a meeting. As introductions are made, each person shakes hands with all the others. How many handshakes occur?
You might be able to figure out how do this one all at once, or you might want to try some simpler, smaller versions first. As always, be sure to explain the work you did to arrive at your answers!
As always, be sure to explain the work you did to arrive at your answers!
Ten strangers attend a meeting. As introductions are made, each person
shakes hands with all the others. How many handshakes occur?
