Problems on Trains topics include: Trains and stations, two trains passing each other, and trains crossing poles. Types of  train-based questions that are asked: 1. Time Taken by Train to Traverse Any Stationary Body or Platform 2. Time it takes for two trains to cross paths 3. Train Equation-Based Problems Useful Formulas For Problems on Train - Speed of the Train = Total distance covered by the train / Time taken - The time it takes for two trains to cross each other is equal to (a+b) / (x+y) if the lengths of the trains, say a and b, are known and they are going at speeds of x and... Show more

Problems on Trains topics include: Trains and stations, two trains passing each other, and trains crossing poles.

Types of  train-based questions that are asked:

1. Time Taken by Train to Traverse Any Stationary Body or Platform
2. Time it takes for two trains to cross paths
3. Train Equation-Based Problems

Useful Formulas For Problems on Train
- Speed of the Train = Total distance covered by the train / Time taken
- The time it takes for two trains to cross each other is equal to (a+b) / (x+y) if the lengths of the trains, say a and b, are known and they are going at speeds of x and y, respectively.
- When the length of two trains, let’s say a and b, is known and they are travelling at speeds of x and y, respectively, in the same direction, the time it takes for them to cross each other is equal to (a+b) / (x-y).
- When two trains begin travelling in the same direction from points x and y and cross each other after travelling in opposite directions for times t1 and t2, respectively, the ratio of the speeds of the two trains is equal to t2:t1.
- If two trains depart from stations x and y at times t1 and t2, respectively, and they go at speeds L and M, respectively, then the distance from x at which they will collide is equal to (t2 – t1) (speed product) / (difference in speed).
- When a train stops, it travels the same distance at an average speed of y rather than the normal average speed of x. Hourly Rest Time = (Difference in Average Speed) / (Speed without stoppage)
- If it takes two trains of similar length and speed t1 and t2 to pass a pole, the time it takes for them to cross each other if the trains are going in the opposite direction is equal to (2t1t2) / (t2+t1).
- If it takes two trains of equal length and speed t1 and t2 to cross a pole, the time it takes for the trains to cross each other if they are travelling in the same direction is equal to (2t1t2).

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