31. Planting Ash Trees Strategically A gardener had 10 ash trees that he needed to plant so that each of the fences of his square plot would have three ash trees. How did he do it? Added 7 March 2011 Show Hint Show Solution Hint: Consider that the ashes can be at the corners of the land. Solution: The gardener planted 3 ash trees on each of the 4 sides of the square, but the corners are shared between two sides. Thus, by planting 1 ash tree in each corner, it is achieved that each side has 3 ash trees: 1 in each corner and 1 in the middle of each side.
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