If the snail climbs 3 inches during daytime and slips down 2 inches during nighttime.
How many days will it take the snail to get out of the well?|||After 27 days, the snail has gone up 27 脳 3 鈥?27 脳 2 = 27 inches.
On the 28th day, it can reach 30 inches and go out the well.
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