- A280
- B500
- C220
- D260
Step-by-Step Solution
72 km/ m/s. In 25 s the train goes m = train + platform, so the platform is 500 − 220 = 280 m.
Answer: A) 280
Running at 72 km/h, a 220 m long express clears a platform completely in 25 seconds. What is the length of the platform in metres?
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