Question
9 trees are planted along a road at equal distances.
The distance between the 7th and the 9th tree is 12.5 m.
What is the distance between the 1st and the last tree?
4 m

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9 trees are planted along a road at equal distances.
The distance between the 7th and the 9th tree is 12.5 m.
What is the distance between the 1st and the last tree?