The worm takes 11 days to climb a 12-foot wall by crawling 3 feet up during the day and slipping 2 feet at night.
The worm takes 11 days to get to the top of the wall.
To visualize this, on the first day, the worm crawls up 3 feet, reaching 3 feet. At night, it slips down 2 feet, ending up at 1 foot. This pattern continues until it reaches 12 feet on the 11th day.
By keeping track of the distance climbed and slipped, you can calculate the number of days needed for the worm to climb the 12-foot wall.
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