- A320
- B500
- C300
- D680
Step-by-Step Solution
72 km/ m/s. In 25 s the train covers m = train + bridge, so bridge = 500 − 180 = 320 m.
Answer: A) 320
Running at 72 km/h, a 180 m long train takes 25 seconds to cross a bridge completely. How long is the bridge (in metres)?
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