A 280 meters long train crosses a platform thrice its length in 6 minutes 40…
2024
A 280 meters long train crosses a platform thrice its length in 6 minutes 40 seconds. What is the speed of the train?
- A.
3.2 m/s
- B.
1.4 m/s
- C.
2.8 m/s
- D.
Cannot be determined
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Correct answer: C
Solution: Find the speed of the train from the given data.
Train length = 280 m. Platform length = 3 × 280 = 840 m.
Total distance to be covered to cross the platform = 280 + 840 = 1120 m.
Time = 6 minutes 40 seconds = 6 × 60 + 40 = 400 s.
Speed = distance ÷ time = 1120 ÷ 400 = 2.8 m/s.
Therefore the speed of the train is 2.8 m/s.