A thief running at 8 km/hr is chased by a policeman whose speed is 10…

Question

A thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. If the thief is 100 metres ahead of the policeman, then the time required for the policeman to catch the thief will be :

Accepted Answer

Option B. 3 minutes. Answer & Solution Answer: Option B Solution: Relative speed = (10 - 8) km/hr = 2 km/hr Required time = Time taken to cover 100 m at relative speed : & = ( 1002000 ) hr & = ( 120 ) hr & = ( 120 × 60 ) min & = 3 minutes