A train moving at a speed of 63 km/hr enters a railway station and crosses the…
2023
A train moving at a speed of 63 km/hr enters a railway station and crosses the platform in 20 s. If the length of the train is 100 m, what is the length of the platform?
- A.
150 m
- B.
200 m
- C.
250 m
- D.
300 m
Attempted by 7 students.
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Correct answer: C
First, convert the train's speed from km/hr to m/s by multiplying 63 by 5/18, which equals 17.5 m/s. Next, calculate the total distance covered in 20 seconds by multiplying speed (17.5 m/s) by time (20 s), resulting in 350 meters. Finally, subtract the train's length (100 m) from the total distance to find the platform length: 350 - 100 = 250 meters.