294 viewsMath :: BasicMath :: Pre Algebra

There are 4 men who want to cross a bridge. They all begin on the same side. Yo 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’s pace.

Man 1: 1 minute to cross

Man 2: 2 minutes to cross

Man 3: 5 minutes to cross

Man 4: 10 minutes to cross.

This is a straight-forward problem, there are no tricks. What is the combination and sequence of the the men above crossing the bridge?

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