Monday 22 December 2014

A jumping Frog



     A frog starts climbing a 30 ft wall. Each hour he climbs 3 ft and slips back 2. How many days does it take him to reach the top and get out?

Answer:   The answer is not 30 hours. At the end of 27 hours he is 3 ft from the top. And during the 28th hour he climbs the remaining 3 ft and he is out. So the answer is 28 hours.

No comments:

Post a Comment

Related Posts Plugin for WordPress, Blogger...