SOLUTION: Suppose that there are 10 people at the head table for a banquet. Each time a toast is given the 10 people raise their glasses in a toast and every person pings glasses exactly onc
Question 1116296: Suppose that there are 10 people at the head table for a banquet. Each time a toast is given the 10 people raise their glasses in a toast and every person pings glasses exactly once with everyone else. If four people give toasts before the meal, how many pings will there be at the head table? Answer by ikleyn(52776) (Show Source): You can put this solution on YOUR website! .
= 45 pings after each tost.
In all, there were 45*4 = 180 pings after 4 toasts.