Question
A train that is 120 m in length runs at 90 km/h. How
much time will the train take to cross a bridge that is 180 m in length?Solution
Length of train =120m Length of bridge =180m. Speed of train =90km/h=90×5/18=25m/sec. Time = (total distance)/speed = (120+180)/25 =300/25 =12 sec.
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