The network diagram below describes a skateboard park with seven ramps.
The ramps are shown as vertices `T`, `U`, `V`, `W`, `X`, `Y` and `Z` on the graph below.
The tracks between ramps `U` and `V` and between ramps `W` and `X` are rough, and cannot be used by skateboards.
- Describe a path that a skateboarder at ramp `V` could use to travel to ramp `T` that uses 4 edges only. (1 mark)
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- A skateboarder begins skating at ramp `W` and follows an Eulerian trail.
- What trail does the skateboarder take? (2 marks)
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