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

At any moment, at most one ant may be on a connection between two islands. Each ant takes 1 minute to traverse a connection, and travel within an island takes negligible time. What is the maximum number of ants that can reach F after 3 minutes?

At any moment, at most one ant may be on a connection between two islands. Each ant takes 1 minute to traverse a connection, and travel within an island takes negligible time. What is the maximum number of ants that can reach F after 3 minutes?