A snail climbs up a 10-foot pole. Each day it climbs 3 feet, but each night it slides down 2 feet. On which day will the snail reach the top of the pole?
8th day
On days 1 through 7, the snail gains a net 1 foot per day, reaching 7 feet by the end of the 7th night. On the 8th day, it climbs 3 feet, reaching 10 feet and the top before it can slide back down.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Medium. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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