An extraordinary earthworm is trying to build a house on the top of a tree which is 20 meters tall. Everyday, the worm climbs 5 meters. However, at night, while he is sleeping, he unknowingly slips 2 meters down. In this way, how many days will the earthworm take to reach to the top of the tree?
See the solution

Category: Hard Riddles

Leave a comment

Word Verification *