A policeman noticed a thief from 300 m. The thief started running and the policeman was chasing him. The thief and the policeman ran at speeds of 8 km/h and 9 km/h, respectively. What was the distance between them after 3 minutes?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 250m.
Distance between thief and policeman = 300 m
Speed of thief = 8 km/h
Speed of policeman = 9 km/h
Relative speed in the same direction = Speed of Policeman - Speed of thief
= 9 - 8 = 1 km/h
The distance covered in 60 minutes = 1000 meters
So, distance covered in 3 minutes = (1000/60) × 3 = 50 meters
So, remaining distance after 3 minutes = 300 - 50 = 250 meters