About This Cheat Sheet

Complete guide to Speed, Time and Distance for competitive exams: basic formula (Distance = Speed × Time), conversion between km/h and m/s (multiply by 5/18), average speed formula (total distance / total time), average speed for equal distances (2ab/(a+b) – Harmonic Mean), relative speed concepts (same direction = difference of speeds, opposite direction = sum of speeds), problems on trains (crossing platforms, poles, other trains), problems on boats and streams (upstream = boat speed – stream speed, downstream = boat speed + stream speed), problems on races (beat by distance, beat by time), problems on circular tracks (meeting points, laps), problems on partial journey with different speeds, concept of constant distance (speed inversely proportional to time), and shortcut tricks for SSC, Banking, Railway, UPSC, and other government exams.