Quantitative Aptitude
Time, speed and distance
Distance = speed × time, unit conversion, trains and relative speed.
Distance = Speed × Time.
km/h to m/s: multiply by 5/18. m/s to km/h: multiply by 18/5.
A train of length L passing a pole covers distance L. Passing a platform of length P, it covers L + P.
Relative speed: add speeds for opposite directions, subtract for the same direction.
📌 Remember for the exam
- ×5/18 converts km/h to m/s
- Average speed for equal distances = 2xy/(x + y)