A train was going to Nagpur at 60 kmph. It's T.C was standing at last boggie. Looking out of the window he noticed a sign that the train was 200 km away
from Nagpur. He started checking tickets at 1/3 m/sec. After checking tickets through two boggies each 60 m long. The T.C return to his original position walking at 1 m/sec. How far from Nagpur was the train at that time?