Quantitative Aptitude – Problems on Trains
Solve problems involving trains crossing platforms, signals, or each other using relative speed.
1. Concepts
Use relative speed for moving objects: same direction → subtract; opposite direction → add.
2. Basic Formula
Time to cross = Length to cross / Relative speed. Convert speed into same unit as length.
3. Quick Tips
4. Common Errors
5. Revision Checklist
Summary: Convert speed units, use relative speed, and divide by total length to find time with ease.