Question 161543: there are five students they will sit down on the bench. 2 students between that five students are A and B. how many ways A and B can sit down if A and B must be sit contiguous: there are five students they will sit down on the bench. 2 students between that five students are A and B. how many ways A and B can sit down if A and B must be sit contiguous Answer by oscargut(682) (Show Source):