If you seat the people one at a time, the first person will have 5 choices, the second will have 4, and the third will have 3 choices. So the answer is 5*4*3=60.
So if by p(5,3), you mean , your answer is correct.
Seems simple one,but I have conflict on this with one of my friend.one chair, so that two chairs will remain free).
There are 5 chairs in a row, and three people. In how many ways can
you place the people on the chairs? (each person must occupy exactly
My answer p(5,3)