View source for FMM9B

{{FMM
|title=A Robust Bus System
|problem=

Show that it is possible to set up a system of bus routes (more than one) such that every route has exactly three stops, and any two routes have a stop in common, and it is possible to get from any one stop to any other stop without changing. (Answer will have 7 bus routes.)

|solution=

[[Image:10Bus.jpg|500px]]

}}