A train travelling at a uniform speed passes by a platform 220 m long in 30 seconds and another platform 325m long in 39 seconds find the length of the train
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a train travelling at a uniform speed passes by a platform 220 ... platform 325 m long in 39 s find i the length of the train a ... Speed = 130 + 220/30 = 350/30 = 11.66 m/ sec
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