A 220 yard long train, travelling at 40 mph, enters a two mile long tunnel.
How long will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?
Well done to Rob in 10MH who had the correct answer. He will be receiving a Praise Postcard and Hall Points for his efforts.
Answer: 3 minutes and 11.25 seconds