A

Admin • 825.56K Points
Coach

Q. A train crosses a man running at 9 km/h in opposite direction in 12 seconds. If the train speed is 45 km/h, what is its length?

  • (A) 140 m
  • (B) 160 m
  • (C) 180 m
  • (D) 200 m
Explanation by: Admin
Relative speed = (45+9)×5/18 = 15 m/s → Length = 15×12 = 180 m.

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