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A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km and 11 km per hour respectively. The distance (in metres) between them after 6 minutes is

a

100

b

190

c

150

d

200

Answer : Option A
Explanation :

Relative speed = 11 – 10 = 1 kmph

Distance covered in 6 minutes

=100060×6=frac{1000}{60} imes 6 metre =100=100 metre

∴ Distance between thief and Policeman after 6

minutes = 100 metre = 200 – 100 = 100 metre

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