- A66 km/h
- B72 km/h
- C78 km/h
- D20 km/h
Step-by-Step Solution
Relative speed m/s km/h. Towards each other, so train km/h. (78 km/h adds instead.)
Answer: A) 66 km/h
A 200 m train passes a man walking towards it at 6 km/h in 10 seconds. What is the speed of the train?
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