128
Chat with our AI personalities
555
There are five choices for the first person, four for the next and so one so we get 5*4*3*2*1 as the answer which is 120
6 ways
20 of the 3 legged stools and 11 of the 4 legged chairs
4 people seated on a row may have 4! = 4x3x2x1 = 24 different ways to sit.