- A15 km/h
- B32.4 km/h
- C64.8 km/h
- D54 km/h
Step-by-Step Solution
The extra 12 is spent on the 180 platform: speed = km/h. (32.4 km/h divides 180 by the full 20 )
Answer: D) 54 km/h
A train passes a man standing on a platform in 8 seconds and passes the whole 180 m platform in 20 seconds. What is the speed of the train?
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