List of top Quantitative Aptitude Questions on Problem on Trains asked in CAT

A train travelled a certain distance at a uniform speed. Had the speed been 6 km per hour more, it would have needed 4 hours less. Had the speed been 6 km per hour less,it would have needed 6 hours more. The distance, in km, travelled by the train is

The distance from B to C is thrice that from A to B. Two trains travel from A to C via B. The speed of train 2 is double that of train 1 while traveling from A to B and their speeds are nterchanged while traveling from B to C. The ratio of the time taken by train 1 to that taken by train 2 in travelling from A to C is

A train travelled at one-thirds of its usual speed, and hence reached the destination 30 minutes after the scheduled time. On its return journey, the train initially travelled at its usual speed for 5 minutes but then stopped for 4 minutes for an emergency. The percentage by which the train must now increase its usual speed so as to reach the destination at the scheduled time, is nearest to

Nayjivan Express starts from Ahmedabad towards Baroda at 6:30 am in the morning, moving at an average speed of 50 km/h. The distance between Baroda and Ahmedabad is 100 km. At 7:00 am in the morning the Howrah Ahmedabad express starts from Baroda and moves towards Ahmedabad at 40 km/h. At 7:30 am, Mr. Shah, the station controller, realizes that both the trains are running on the same track. How much time does he have to take action to prevent the collision?