Question
8 lamp posts are planted along a road at equal distances.
The distance between the 5th and the 9th lamp post is 13.8 m.
What is the distance between the 1st and the last lamp post?
4 m

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8 lamp posts are planted along a road at equal distances.
The distance between the 5th and the 9th lamp post is 13.8 m.
What is the distance between the 1st and the last lamp post?