top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

How many seconds will elapse between the moment the front of the train enters the tunnel and the ...........

0 votes
243 views

A 440 yard long train, travelling at 80 mph, enters a 4.5 mile long tunnel.

How many seconds will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?

posted Aug 14, 2014 by Amarvansh

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

213.75 seconds


Distance = 4.5 miles +440 yard= 4.5 miles +440/1760 miles= 4.75 miles
Speed = 80 m/hr = 80/3600 m/sec= 1/45 m/sec
Time = 4.75/1/45= 213.75 sec

answer Aug 17, 2018 by Hanifa Mammadov



Similar Puzzles
0 votes

A 400 yard long train, travelling at 40 mph, enters a one and a half mile long tunnel.

How many seconds will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?

0 votes

A 110 yard long train, travelling at 80 mph, enters a tunnel of 1.5 miles in length.

How many seconds will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel? (to 2 decimal places).

0 votes

A 500 yard long train, travelling at 50 mph, enters a three 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?

0 votes

A 400 yard long train, travelling at 30 mph, enters a 4.5 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?

0 votes

A 275 yard long train, travelling at 60 mph, enters a tunnel of two and a half miles in length.

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?

...