Question 14
Homestead Dam has four chambers A,B,C,F joined by tunnels. A,B,C are bedrooms and F stores food. Ten beavers wake up in A and want breakfast in F.
Each tunnel carries at most one beaver at a time, and crossing takes 1 minute. There are 4 tunnels A–B,1 A–C,2 B–C,1 B–F and 3 C–F. Every chamber can hold all ten beavers. What is the earliest time when all ten can be in F?
Each tunnel carries at most one beaver at a time, and crossing takes 1 minute. There are 4 tunnels A–B,1 A–C,2 B–C,1 B–F and 3 C–F. Every chamber can hold all ten beavers. What is the earliest time when all ten can be in F?