by - 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 times taken by them to cover the same distance is | 1 | : | 1 | or b : a. |
| a | b |
- Suppose a man covers a certain distance at xkm/hr and an equal distance at y km/hr. Then,
| The average speed during the whole journey is | 2xy | km/hr. | ||
| x + y |
