A snail is at the bottom of a 30-foot well. Each day he climbs up three feet, but at night he slips back two feet. How many days will it take him to climb out of the well?

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Answers

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  637
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  @smigaja

  At the end of night 27 you will have come 27 feet.  On the 28tth day you will reach 30 feet.  (we don't slip back down after we get out)
  
  28
  

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  512
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  @dashtic250

  28 hours

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  384
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  @adeboyeadewunmi

  28

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  112
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  @groupergirl0405

  28 days

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  96
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  @schoudhary2

  28

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