A snail climbs a 10-meter wall at a rate of 3 meters each day but slips back 2 meters each night. How many days will it take to reach the top?
Category: Math · Difficulty: hard
Hint: Think about net progress per day.
Answer
8
Explanation
The snail climbs a net of 1 meter per day, but on the 8th day, it climbs to 10 meters without slipping back.
This is a hard math riddle — a tricky one that takes a little thought. The answer is 8.
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