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A man wishes to cross a river with his wolf, goat and cabbage. He has a rowing boat but it it is only big enough for him and one other object. The wolf will take any chance to eat the goat and the goat wants to eat the cabbage. How can the man get all three objects across safely?

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Think harder! What must go across first?

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The wolf and the cabbage are the only two which can be left together safely, therefore the goat must be taken across first.

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It is possible take an object across and then bring it back again later.

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The solution involves noting that the wolf and the cabbage can be left together safely and that it is possible take an object across and then bring it back again later.

  Left Bank River Right Bank
1 Wolf, Cabbage, Goat  & Man    
2 Wolf , Cabbage Goat & Man ----->  
3 Wolf, Cabbage <-----------Man Goat
4 Wolf Cabbage & Man -----> Goat
5 Wolf <-----------Man & Goat Cabbage
6 Goat Wolf & Man -----> Cabbage
7 Goat <-----------Man Wolf, Cabbage
8   Goat & Man -----> Wolf, Cabbage
9     Wolf, Cabbage, Goat  & Man

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