Question 8
The picture is a map of a mountain ski area.

Beaver can go uphill only by cable car and downhill only by skiing. Beaver wants to take every cable-car ride exactly once and ski down every distinct downhill path exactly once. At which point must Beaver start?

Beaver can go uphill only by cable car and downhill only by skiing. Beaver wants to take every cable-car ride exactly once and ski down every distinct downhill path exactly once. At which point must Beaver start?