Summer on Cape Cod. Strong Wellfleet tides with water rising 3 inches per hour in the late afternoon. A fishing boat is unloading the Wellfleet oysters at the long deck. Rope ladder with 10 rungs is hanging over the side of the boat. The distance between each rung is 12 inches. The lowest rung is touching the water. How soon will the tide cover the third rung from the top of the rope ladder? (this puzzle was Massachusetts-ized from the book of B. Kordemsky)
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3 comments:
Hummm.....If the ladder is attached to the boat, then the boat and ladder will both rise.....
So, the 3rd rung from the top wouldn't be touching water unless the boat were sinking....
Couldn't fool you, even with all those numbers!
mdm is very sharp, even on a lazy Sunday morning
expect a very complex, practically unsolvable, puzzle tomorrow :)
The boat will rise with the water. The water will never cover the third rung.
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