A policeman notices a thief from a distance of 220 m. He chases the thief when he started running the moment he saw the police. The thief and policeman run at the rate of 9 km/h and 11 km/h respectively. How much distance policeman has to cover for catching the thief?
A.0.98 km
B.1.21 km✓ Correct
C.1.48 km
D.0.86 km
Explanation
The relative speed is 11−9=2 km/h. Time to close 220 m = 0.22 km at 2 km/h = 0.11 hours. Distance covered by policeman = 11 × 0.11 = 1.21 km.
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