# Problems on Trains - Aptitude Questions, Shortcuts, Formulas

**Problems on Trains Formulas - Page 2**

**Problems on Trains Questions - Page 3**

**Problems on Trains Video Lectures - Page 4**

We cover all the topics and concepts of Aptitude Problems on trains like two trains are moving in opposite directions, calculate train speed, calculate distance, etc.

## Rules on Problem On Trains

* Rule 1*: When two trains are moving in opposite directions, then relative speed will be the addition of their individual speeds.

* Rule 2:* When two trains are moving in same direction, then relative speed will be the subtraction of their individual speeds.

* Rule 3:* On passing a platform by a certain train the net distance traveled is the sum of length of train and the length of platform both.

* Rule 4:* When a train passes through a pole or person standing, net distance traveled to pass is the length of the train