A thief is spotted by a policeman from a distance of 200metres. When the policeman starts the chase, the thief also starts running. If the speed of the thief be 16km/hr and that of the policeman 20km/hr, how far the thief will have run before he is overtaken ? Options
A) 1km	B) 500m	C) 650m	D) 750m	E) 800m
Relative speed of the policeman = 20-16= 
<gadget id="calculator">20-16</gadget>
<output>4</output>
4 km/hr   time taken by policeman to cover 200m= (200/1000)*(1/4) = 1/20 hr   In 1/20 hr the thief covers a distance of 16/20 km = 4/5 km = 800m   Answer is 800m
<result>E</result>
A thief is spotted by a policeman from a distance of 200metres. When the policeman starts the chase, the thief also starts running. If the speed of the thief be 16km/hr and that of the policeman 20km/hr, how far the thief will have run before he is overtaken ?