A policeman sees a thief at a distance of 50 m and starts chasing him at a speed of 7 m/s, while the thief runs at a speed of 5 m/s. What is the distance (in m) covered by the thief when he is caught?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 125.
Relative speed = 7 - 5 = 2 m/s
Time taken for the policeman to catch the thief = 50/2 = 25 seconds
Distance covered by the thief during this time = 5 × 25 = 125 m