**Home > Quantitative Aptitude > Time and Work > Problems on Trains**

31. A train covers a distance of 12 km in 10 minutes. If it takes 6 seconds to pass a telegraph post, then the length of the train is?

33. A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

34. A train traveling at a speed of 75 km/hr enters a tunnel 3 1/2 miles long. the train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?

35. A train 360 m long is running at a speed of 45 km/hr. What time will it pass a bridge 140 m long?