A train 110 meters in length passes a man walking at the speed of 6 km/hr. against it in 6 seconds. The speed of the train in km per hour is A. 45 km/hr B. 55 km/hr C. 50 km/hr D. 60 km/hr Answer Workspace Report Discuss Answer with explanation Answer: Option D Explanation Assume speed of the train in km/hr = x Then the relative speed = (x+6)km/hr => (x+6)*(5/18) m/sec Therefore given that (x+6)*(5/18)*6 = 110 ==>> x = 60 Thus, the speed of the train = 60km/hr Workspace
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