There are 4 men who want to cross a bridge. They all begin on the same side. You have 17 minutes to get all of them across to the other side. It is night. There is one flashlight. A maximum of two people can cross at one time. Any party, who crosses, either 1 or 2 people, ,must have the flashlight with them. The flashlight must be walked back and forth; it cannot be thrown, etc. Each man walks at a different speed. A pair must walk together at the rate of the slower man.
Daniel can make 1 minute to cross the bridge
Bob can make 2 minutes to cross the bridge
Anna can make 5 minutes to cross the bridge
Connor can make 10 minutes to cross the bridge
for example: if adam and dan walk across first, then 10 minutes have elapsed when they get to the other side of the bridge. If dan returns with the flashlight, a total of 20 minutes have passed, and you have failed the mission!
Daniel can make 1 minute to cross the bridge
Bob can make 2 minutes to cross the bridge
Anna can make 5 minutes to cross the bridge
Connor can make 10 minutes to cross the bridge
for example: if adam and dan walk across first, then 10 minutes have elapsed when they get to the other side of the bridge. If dan returns with the flashlight, a total of 20 minutes have passed, and you have failed the mission!