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What is train speed

A train crosses a 300 meter ling platform in 38 second while it crosess a signal pole in 18 sec. what is the speed of trian.
Question asked by: jitender

Asked on: 11 Jun 2010
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Speed = Distance/time
Distance = 300 metres
time = 38 seconds
Speed = 300/38=7.89m/s
(I cannot understand the significance of the pole in this question)

By: appuswathi
Replied at: 13 Jun 2010
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speed  train  

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