Four people are on one side of a bridge. All of them need to cross a bridge in order to escape from a pack of zombies. They have 17 minutes before the zombies arrive and all four people must be on the other side of the bridge. It is night and there is one flashlight. A maximum of two people can cross at one time. Any party who crosses, either one or two people, must have the flashlight with them. The flashlight must be walked back and forth, it cannot be thrown, etc. Each person walks at a different speed. A pair must walk together at the rate of the slower man
Mr. Ng: 1 minute to cross
Ms. Aspell: 2 minutes to cross
Ms. Brids: 5 minutes to cross
Mr. Dybdahl: 10 minutes to cross
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