Snail problem?

A snail is at the bottom of a well and wants to get out. He manages to crawl up the wall 3 feet each day, but at night he must rest ( after all that work during the day ) and so he slips back down 2 feet. If the well is 30 feet deep, How long will it take him to get out?

28 days

30 days

3O days :))

31 days - 30 days just to get to the top and another day to get out

30 days, having climbed a total of 1 feet per day...

Never, he will have starved to death before he reached the outside.

31 days

30 days and 29 nights