A policeman starts chasing a thief who is at a distance of 600 metres. The speeds of the policeman and the thief are 12 km/h and 10 km/h respectively. In what time will the thief be caught?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 18 min.
The distance between the policeman and the thief = 600 m
The speeds of the policeman and the thief are 12 km/h and 10 km/h respectively
So, Relative speed = 12 - 10 = 2 km/hr
2 km/hr = 2 × 50/3 = 100/3 m/min
We know that,
Time = Distance/Speed
Time = 600/(100/3) = 18 min