Find the length of the bridge which a train 130 m long, travelling at 45 kmph, can cross in...
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Find the length of the bridge which a train 130 m long, travelling at 45 kmph, can cross in 30 seconds.
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Answer: D. D) 245 m
45kmph = 12.5m/s. 12.5*30 = 375m. 375-130 = 245m.