About This Cheat Sheet

Complete guide to Problems on Trains for competitive exams: basic formula (Distance = Speed × Time), train crossing a stationary object (pole, man, tree) – time = length of train / speed, train crossing a platform or bridge – time = (length of train + length of platform) / speed, train crossing another train (same direction – relative speed is difference, opposite direction – relative speed is sum), train crossing a running man (same direction – relative speed is difference, opposite direction – relative speed is sum), two trains starting at different times, finding speed of train when time taken to cross given, finding length of train from crossing time, problems on trains passing through tunnels, problems on trains with different lengths, concept of km/h to m/s conversion (multiply by 5/18), and shortcut tricks for SSC, Banking, Railway, UPSC, and other government exams.