Boats and Ladders
A 10 foot rope ladder whose rungs are one foot wide is hanging over the side of a boat. At this time there is only 1 foot of ladder under the water. It now begins to rain heavily, if it rains at the rate of 1 foot every two hours, how many hours will it take to cover half of the ladder?
-Rx
-Rx
Labels: mathemagic, SharedPuzzle
posted by Mr Fahrenheit at
8:48 PM
11 Comments:
a boat floats on the water. it doesn't matter if it rains. unless you physically push the rope under the water, the level will not change.
AHH i was going to say that...
lol, one of them i figured out in less than 10 seconds.. haha.
Cybersurf.
@ #1... except its a ladder not a rope...
Technically, it depends on whether the boat is decked or open and if all the hatches are dogged and if anyone is bailing or if the boat has a bilge pump, that is operational and turned on... :)
Unfortunately, these questions are not always academic: at nearby marina two boats sunk during last week's rainstorms - the (censored) owners did not have the automatic bilge pumps powered... Happens, especially early in the season.
'A 10' rope ladder' is what it states
^^^ ahhh touche...
withdrawn
The question only askes you times 9 by 2 = 18... 18 hours!
I know the boat wont actully sink... its just amusing!
If it rains enough, the boat will eventually fill with water and sink.
I'm guessing 8 or 9 hours since one foot is already under water and it would leave 9 hours. So at a rate of 1 ft every 2 hours for half of the rope to be covered, it would depend what it would mean by half the rope. Would it mean half of the rope that is not underwater or half of the rope period? So I guess 8 or 9 hours.
I don't know about the rest of you, but if its raining 6 inches an hour, I'm not gonna stick around to find out how long it takes for my ladder to go under water... I'm getting to higher ground!
Lol
lol
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