I need help with a math problem

Dec 9th, 2015
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Question description


A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train


A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. What ids the speed of the train?


The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is

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