Bee Travel Puzzle-Asked in interviews.

Placewit
2 min readFeb 9, 2022

Question:

Two trains enter a tunnel 200 miles long, traveling at 100 mph at the same time from opposite directions.
As soon as they enter the tunnel a supersonic bee flying at 1000 mph starts from one train and heads toward the other one.
As soon as it reaches the other one it turns around and heads back toward the first, going back and forth between the trains until the trains collide in a fiery explosion in the middle of the tunnel.

How far did the bee travel?

Solution: 1000 miles

The tunnel is 200 miles long. The trains meet in the middle traveling at 100 mph, so it takes them an hour to reach the middle. The bee is traveling 1000 mph for an hour (since its flying the whole time the trains are racing toward one another) – so basically the bee goes 1000 miles.

Thanks for Reading

Placewit grows the best engineers by providing an interactive classroom experience and by helping them develop their skills and get placed in amazing companies.

Learn more at Placewit. Follow us on Instagram and Facebook for daily learning.

--

--