Cable

Question:

A 16 meters cable is attached to two 15 meters high pillars. At its lowest point, the cable hangs 7 meters above the ground. What is the distance between two pillars?

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Answer: It is a kind of trick question. The side-by-side pillars are 15 meters high, and the cable is hanging 7 meters above the floor. That means the cable goes 8 meters down and 8 meters up again. Hence the distance between the pillars is “zero” meters.

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