Question 1
A mouse is at the entrance of a pipe system and wants the cheese at the bottom of pipe 5. It follows these rules:
1. Go downward.
2. At each junction, change direction to enter the neighboring pipe.
Which entrance should the mouse use to reach the cheese at the end of pipe 5?
1. Go downward.
2. At each junction, change direction to enter the neighboring pipe.
Which entrance should the mouse use to reach the cheese at the end of pipe 5?