A thief robs precious metals from a store which is 1150 m away from the police. The thief starts running at 6 km/h and the police starts chasing at 11 km/h at the same time. How much distance (in m) will the thief run before being caught?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 1380.
Distance between the thief and the police = 1150 m or 1150/1000 = 1.150 km
Speed of the thief = 6 km/h
Speed of the police = 11 km/h
Relative speed = 11 - 6 = 5 km/h
Time taken to catch the thief = Distance/Relative speed = 1.150/5 = 0.23 hours
Distance run by the thief = 0.23 × 6 = 1.38 km or 1.38 × 1000 = 1380 m