A thief is noticed by a policeman from a distance of 150 m. The thief starts running and the policeman chases him. The thief and policeman run at the speed of 11km/h and 12km/h, respectively. What is the distance between them after 6 minutes?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 50 m
Policeman notice a thief from distance = 150m
⇒ Policeman run at the speed of 12km/h
⇒ Thief run at the speed of 11km/h
⇒ Distance covered time = 6minutes
Distance = speed × time
Relative speed = 12km/h - 11kmph = 1km/h
Time = 6minutes = 6/60hr = 1/10hr
So, the distance covered in 6 minutes = speed × time = 1 × (1/10) = 1/10 km = 1000/110 = 100m
⇒ Distance between the thief and policeman = 150 - 100 = 50m
Here than After 6 minutes distance between thief and policeman is 50m