Enrichment problem
This is a very old puzzle. It tells of a showman traveling the countryside on tour with a wolf, a goat and a cabbage. He comes to a river bank and the only means of getting accosts is a small boat which can hold him with only one of the wolf, the goat or the cabbage. Unfortunately he dare not leave the wolf alone with the goat or the goat alone with the cabbage for the wolf would eat the goat and goat would eat the cabbage. After some thought the showman realized that he could use the boat to transport himself and all his belongings safely across the river. How did he do it?
Source:
Educational media
Friday, April 28, 2006
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2 comments:
Answer:
Let assume that he cross from side A to side B.
One of the answers would be:
The showman can take the goat from side A to side B and leave the goat on side B.
Coming back, he can take the wolf from side A to side B.
Leave the wolf on side B and take the goat back to side A.
Leave the goat on side A and take the cabbage to side B.
Leave the cabbage and the wolf on side B.
Finally, he can take the goat to side B.
The trick is that we have to realize that the showman can take one of the animals or cabbage back to side A.
Thanks anonymous! That really helped me answer my extra credit!
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