2015 · Q29
A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the speed of 10 km/hr and 11 km/hr respectively. What is the distance between them after 6 minutes?
Elementary MathematicsTime, Speed and Distance
- A100 m
- B120 m
- C150 m
- D160 m
Explanation
The policeman gains at 11 − 10 = 1 km/h = 1000 m per hour, i.e. 100 m in 6 minutes. The 200 m gap shrinks to 100 m (option A).