Subject: mathqa
Question: a policeman noticed a criminal from a distance of 200 km . the criminal starts running and the policeman chases him . the criminal and the policeman run at the rate of 8 km and 9 km per hour respectively . what is the distance between them after 3 minutes ?
Option: 
A: 150 m
B: 100 m
C: none of these
D: 120 m
Answer: A