Two trains, one of length 600 m and other of 200 m, travel at 36 kmph and 72 kmph respectively. These trains are running on parallel tracks. How long (in sec) will it take for the slower train to completely cross the driver of the other train if the trains are running in opposite direction?
Explanation:
36 kmph = 10 m/s and 72 kmph = 20 m/s
T = D/S = (600)/(10 + 20) = 600/30 = 20 secs.
Hence, 20.
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