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"U2" has a concert
that starts in 17 minutes and they must all cross
a bridge to get there. All four men begin on the
same side of the bridge. It is night. There is one
flashlight. A maximum of two people can cross at
one time. Any party who croses, must have the flashlight
with them. The flashlight must be walked back and
forth, it cannot be thrown, etc.. Each band member
walks at a different speed. A pair must walk together
at the rate of the slower man's pace:
Bono: 1 minute to cross
Edge: 2 minutes to cross
Adam: 5 minutes to cross
Larry: 10 minutes to cross
For example: If Bono and Larry walk across first,
10 minutes have elapsed when they get to the other
side of the bridge. If Larry then returns with the
flashlight, a total of 20 minutes have passed and
you have failed the misson.
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