A

Admin • 825.56K Points
Coach

Q. A train 120 m long crosses a man walking at 6 km/h in same direction in 12 seconds. What is the speed of the train?

  • (A) 36 km/h
  • (B) 42 km/h
  • (C) 48 km/h
  • (D) 54 km/h
Explanation by: Admin
Relative speed = 120/12 = 10 m/s = 36 km/h → Train speed = 36+6 = 42 km/h.

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