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Puzzle
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I have a math puzzle that I just
can't get.
You have 4 people (A, B, C and D) that need to cross a bridge under 13
min and only 1 flashlight. You can only go with the flashlight, no
more than 2 persons at a time, and always as fast as the slowest
person. To cross the bridge persons need:
A=1min; B=2min; C=5min; D=6min.
How do you get all 4 of the across in only 13 min?
P.S. they can't go on each others back!
A. |
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* This puzzle is one of several
well-known puzzles of this type. In fact, it's a clever version of
traditional crossing river puzzles. |
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Mini-Contest 5 -
Bridge Puzzle is FINISHED |
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| It was our
fifth mini-contest. Because of some technical problem now
we have the first six+one correct answers and propose this
contest's results and some details about
the puzzle and its
solution. With this
Mini-Contest 5 is finished. |
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The
winners are:
1. Jensen Lai.
2. Hüsnü Sincar.
3. Nicole Takahashi.
4. Tanya Bulls.
5. Nigel Wilson.
6. Terry & Lisa.
7. Alex Packard. |
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Posted: January 24, 2002 | Last Updated:
July 8, 2007 |
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