You are on a ship and over the side hangs a rope ladder with one foot rungs. The tide rises a one foot per hour. At the end of five hours, how much of the ladder will remain above the water assuming that 12 rungs were above the water when the tide began to rise?
- none
- 7 rungs
- 5 rungs
- 12 rungs
Answer
The correct answer is D) 12 rungs.
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