- A240
- B450
- C210
- D300
Step-by-Step Solution
54 km/h = 15 m/s. In 30 s it covers 450 m = train + platform. Train = 450 − 210 = 240 m.
Answer: A) 240
Running at 54 km/h, a train crosses a 210 m long platform in 30 seconds. How long is the train (in m)?
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