A gardener has 10 trees and wants to plant them in 5 straight lines with exactly 4 trees in each line. How can the gardener arrange the trees?
Plant the trees in the shape of a five-pointed star (a pentagram).
A five-pointed star has 5 line segments with 4 intersection points (vertices) on each line. Placing a tree at each of the 10 total vertices satisfies the condition.
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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