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

21. A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is?

22. A 300 m long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds.What is the length of the platform?

23. A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds.If the speed of the train is 54 km/hr,what is the length of the platform?

24. A train crosses a platform 100 m long in 60 sec at a speed of 45 km/hr.The time taken by the train to cross an electric pole is?

25. A train of length 150 m takes 40.5 sec to cross a tunnel of length 300 m.What is the speed of the train in km/hr?