A shepherd needs to cross a river with a wolf, a goat, and a cabbage. His boat can only carry him and one item at a time. If left unattended, the wolf will eat the goat, and the goat will eat the cabbage. How many one-way crossings of the river does the shepherd need to make to get everything across safely?
7 crossings
Take goat across (1). Return alone (2). Take wolf across, bring goat back (4). Take cabbage across, return alone (6). Take goat across (7). Total 7 one-way trips.
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: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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