Basic arithmetics math formulas
TIME AND DISTANCE Speed, Time and Distance: Speed = Distance , Time = Distance , Distance = (Speed x Time). Time Speed km/hr to m/sec conversion: x km/hr = x x 5 m/sec. 18 m/sec to km/hr conversion: x m/sec = x x 18 km/hr. 5 If the ratio of the speeds of A and B is a : b , then the ratio of the the times taken by then to cover the same distance is 1 : 1 or b : a . a b Suppose a man covers a certain distance at x km/hr and an equal distance at y km/hr. Then, the average speed during the whole journey is 2 xy km/hr. x + y