Originally Posted by radix
Disregard my previous post. Schoy's method works too. It occurred to me that there is still a semantical issue here. It depends largely on how you interpret the phrases "both sit next to", and more importantly "only one other student". If you take only one other student to mean one specific student then my way works. If you take it to mean one other student in the general sense then Schoy's works. Oddly the probabilities are the same regardless of interpretation. Sorry Schoy.
This was what i was saying the whole time lol, that both bob and lisa sit next to one other person from the group.