A farmer needs to cross a river with a wolf, a goat, and a cabbage. However, his boat can only hold the farmer and one item at a time. If left unattended, the wolf eats the goat, and the goat eats the cabbage. What is the minimum number of one-way trips the farmer must make to transport everything safely across?
7
Trip 1: Take goat across. Trip 2: Return alone. Trip 3: Take wolf across. Trip 4: Return with goat. Trip 5: Take cabbage across. Trip 6: Return alone. Trip 7: Take goat across. Total one-way crossings equal 7.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Easy. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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