A snail sits at the bottom of a 30 foot wall each hour it can climb three feet but it then slips down two feet how long does it take the snail to reach the top?
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Explanation:
Similarly, in 25 hours, the snail would have climbed 25 feet, in 26 hours it would have climbed 26 feet and in 27 hours it would have climbed 27 feet, but things change after 27 feet.
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