Brain Teasers
Columns
There are two columns, both 100m high (both heading straight up from the ground). A rope is tied to the tops of both columns. The rope is hanging freely and its length is 160m. The lowest point of the rope is exactly 20m from the ground. What is the distance between the two columns?
Hint
Draw a picture... and remember no difficult math calculation is needed.Answer
The distance is zero. The lowest point of the rope divides the rope in half, i.e. 80m each. If you add 80m plus the distance from the ground which is 20m, you get 100m, so the rope must be going straight down...Hide Hint Show Hint Hide Answer Show Answer
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