Mathematics, 22.09.2019 07:30, savannahvargas512

Atrain, 450 meters long, passed by the bridge in 35 seconds, and it passed by the post in 15 seconds. what is the speed of this train and the length of the bridge?

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Atrain, 450 meters long, passed by the bridge in 35 seconds, and it passed by the post in 15 seconds...