Aptitude Reasoning English GK Computer Knowledge Programming Skill Banking Software Testing

Question

A train 1000 meters long is running at a speed of 90 km/hr. If it crosses a tunnel in 120 seconds, then the length of the tunnel (in meters) is?

  • 500
  • 1000
  • 1500
  • 2000
Answer- D

Speed = 90 x 5/18 m/sec = 25 m/sec.

Time = 120 seconds.

Let the length of the tunnel be x meters.

Then, (1000 + x)/120 = 25

=> 1000 + x = 3000

=> x = 2000.