Question 1001708
the tunnel is 2900 meters long.
the train is 300 meters long.
in order to get completely through the tunnel so that the rear end of the train is out of the tunnel, the train has to travel 2900 + 300 = 3200 meters.
at 600 meters per minutes, it would take the train 3200 / 600 = 5 and 1/3 minutes.
1/3 of a minute = 20 seconds.
it would take the train 5 minutes and 20 seconds to clear the tunnel.