Question 12
Ten ants on island A are trying to reach island F to find food, as shown below.

At any moment only one ant can travel on a path connecting two islands. An ant takes 1 minute to traverse a whole path, and movement time on an island is negligible. What is the maximum number of ants that can reach F after 3 minutes?

At any moment only one ant can travel on a path connecting two islands. An ant takes 1 minute to traverse a whole path, and movement time on an island is negligible. What is the maximum number of ants that can reach F after 3 minutes?