A policeman follows a thief who is 600 m ahead of the policeman. If the policeman and the thief run at speeds of 10 km/h and 8 km/h, respectively, in how much time (in minutes), will the policeman catch the thief?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 18
Given that
A policeman follows a thief who is 600 m ahead of the policeman
⇒The speed of the policeman = 10 km/h
⇒The speed of the thief = 8 km/h
According to the question
⇒The relative speed when they run in the same direction = 10 - 8 = 2 km/h
⇒Time to catch the thief by policeman = (600/2) × 60/1000 = 18 minutes.