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A train 150 m long takes 20 seconds to cross a platform 450 m long. The speed of the train (in m/sec) is
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22.5 30 45 96 |
30 |
Speed = \(\frac{ Distance}{ Time}\) Speed = \(\frac{\text{150 + 450}}{ 20}\) Speed = \(\frac{ 600}{ 20}\) Speed = 30 m/s
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