1. Two trains of equal length are running on parallel lines in the same direction at the rate of 46 kmph and 36 kmph. The fater train passes the slower train in 36 seconds. The length of each train is:

2. A train crosses a platform 100 metres long in 60 seconds at a speed of 45 km per hour. The time taken by the train to cross an electric pole is:

3. A train 50 metres long passes a platform 100 metres long in 10 seconds The speed of the train is: