Question

A 120 m long train is running at a speed of 45 km/hr. If it takes 24 seconds to cross the platform, find the length of the platform

Answer 1

Answer:

Let, length of bridge = x m

Length of train = 130 m

Speed of train = 45 km/hr = 45000/3600 meters/sec = 12.5 m/s

In order to completely cross the bridge, distance traveled by train = (x+130) m

Time taken to cross = 30 s

Distance traveled in 30 sec = 12.5 X 30 = 375 m = x + 130

Length of bridge, x = 375 - 130 = 245 m

Step-by-step explanation:

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