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The Government Subsidy Problem

The government pays farmers a specific fee for each row of four trees that they plant. An enterprising, but dishonest farmer found a way of planting five rows of four trees using only ten trees. How did he do it?

The farmer planted the ten trees in the shape of a star to get five rows of four trees.


This problem has several answers. Reader qc1okay provided diagram A, below. Diagram B is a more symmetrical variation of that idea.

tree arrangement

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