A train covers a distance of 12 km in 10 minutes. If it takes 6 seconds to pass a telegraph post, then the length of the train is: A. 90 m B. 100 m C. 120 m D. 140 m Answer Workspace Report Discuss Answer with explanation Answer: Option C Explanation Speed = 12 10 x 60 km/hr = 72 x 5 18 m/sec = 20 m/sec. Length of the train = (Speed x Time) = (20 x 6) m = 120 m. Workspace
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