Bridge Over Troubled Students

There are four 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 one or two 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

Man 1= 1 minute to cross

Man 2= 2 minutes to cross

Man 3= 5 minutes to cross

Man 4= 10 minutes to cross

For example, if Man 1 and Man 4 walk across first, 10 minutes have elapsed when they get to the other side of the bridge. If Man 4 returns with the flashlight, a total of 20 minutes have passed, and you have failed the mission.

please i want a answer

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A	B	Time taken
@1234		Start
34	12@	2m
324@	1	2m
2	134@	10m
21@	34	1m
	1234@	2m

Bridge Over Troubled Students

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