- A70 s
- B17.5 s
- C5.7 s
- D10 s
Step-by-Step Solution
Relative speed km/h m/s. Distance m. Time s. (70 s uses the difference of speeds.)
Answer: D) 10 s
A 200 m train at 72 km/h meets a 150 m train coming the other way at 54 km/h on the next track. How many seconds do they take to clear each other?
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