A policeman follows a thief, who is 1 km ahead of him. The thief and the policeman run at speeds of 8 km/h and 10.5 km/h, respectively. What distance (in km) is run by the thief before he is nabbed by the policeman?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 3.2.
Relative speed = 10.5 - 8 = 2.5 km/h
Time to catch thief = 1/2.5 = 0.4 hours
The distance the thief runs = 8 × 0.4 = 3.2 km