Wednesday, September 19, 2012

Brain Teasers # 7 - Rope Ladder

A ship is docked in the harbour. Over the side hangs a rope ladder with rungs a foot apart. The tide rises at a rate of 9 inches per hour. At the end of six hours, how much of the rope ladder will still remain above water, assuming that 9 feet were above the water when the tide began to rise?

Please post  the answer if you know it.

In the meanwhile, here is the solution to yesterday's puzzle.

Answer: Antelope: move it from the end to the beginning, the initial letters will then spell ALPHABET. 

Cheers!

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