Question

A thief is noticed by a policeman from a distance of 380 m. The thief starts running and the policeman chases him. The thief and policeman run at the speed of 25 ,m/sec and 30 m/sec respectively. What is the time taken by the policeman to catch the thief?

• A. 82 sec
• B. 56 sec
• C. 92 sec
• D. 76 sec

Answer 1

Answer:

D. 76 sec

Solution: Given Initial distance: 380 m Speed of thief and policeman: 25 m/s and 30 m/s respectively Concept: Relative speed and time calculation (Time = Distance/Speed). Calculation: Relative speed = speed of policeman - speed of thief 30 m/s - 25 m/s = 5 m/s Time = distance/relative speed 380/5 = 76 sec Hence, the policeman will catch the thief in 76 seconds.