A policeman chases a thief. The speed of the policeman and thief is 10 kmph and 8 kmph, respectively. If the policeman started 15 minutes late, find the time taken by the policeman to catch the thief.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 60 minutes.
Time gap = 15 minutes = 15/60 = 0.25 hours
Distance covered by thief in 0.25 hours = 8 × 0.25 = 2 km
Relative speed = 10 − 8 = 2 km/h
Time to catch = = 1 hour = 60 minutes