Question 141

A train is 250 m long. If the train takes 50 seconds to cross a tree by the railway line, then the speed of the train in km/hr is:

Solution

Length of train = 250 m and time taken = 50 seconds

=> Speed = $$\frac{250}{50}=5$$ m/s

Thus, speed (in km/hr) = $$5\times\frac{18}{5}=18$$ km/hr

=> Ans - (C)

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