- A120 m
- B150 m
- C100 m
- D180 m
Step-by-Step Solution
Speed = m/s. Distance in 20 s = 300 m. Platform = 300 − 180 = 120 m.
Answer: A) 120 m
A train 180 m long, running at 54 km/h, crosses a platform in 20 seconds. What is the length of the platform?
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