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OpenStudy (anonymous):
A 10 foot rope ladder hangs over the side of a boat with the bottom rung on the surface of the water. The rungs are one foot apart, and the tide goes up at the rate of 6 inches per hour. How long will it be until three rungs are covered?
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OpenStudy (lstrasmann):
6 hours
OpenStudy (anonymous):
Never. The boat rises as the tide goes up.
OpenStudy (lstrasmann):
... was that a brain teaser or something?
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