A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel 1 minute, then the length of the tunnel (in meters) is

  • 130 m
  • 360 m
  • 500 m
  • 540 m
A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel 1 minute, then the
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