Question

In how many different ways can 6 runners be assigned to 6 lanes at the start of a race?

Answer 1

Well you have runner 1 in lane 1. runner 1 in lane 2 and so on. so it becomes 1,1 1,2 1,3 1,4 1,5 1,6 and then 2,1 2,2 2,3 2,4 2,5 2,6 then 3, and so on