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?

The snail effectively climbs 1 foot each day, as he ascends 3 feet but slips back 2 feet at night. If the well is, for example, 10 feet deep, after 7 days the snail would be at a height of 7 feet. On the 8th day, he would climb up to 10 feet and escape without slipping back, successfully getting out of the well. Thus, the total time taken for the snail to escape depends on the depth of the well and follows this daily pattern.