Answer : 1 Option A Explanation : Answer: A) Option A Explanation: As Trains are moving in same direction,Relative Speed = 60-20 = 40 kmph--

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Two trains are running at 60 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 6 seconds. What is the length of the fast train ?A. 6623 mtsB. 6632 mtsC.6345 mtsD. 6354 mts