A train running at the speed of 50 km/hr crosses a post in 4 seconds. What is the length of the train? Select the correct option
A) 90 B) 120 C) 60 D) 95 E) 75
Speed=(54x5/18)=15 m/sec.   Length of the train=(Speed x Time).   Length of the train=15x4m=60m.   Answer: 60
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A train running at the speed of 50 km/hr crosses a post in 4 seconds. What is the length of the train?