A thief is noticed by a policeman from a distance of 200m. 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. What is the distance between them after 6 minutes ?

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150 m

none

100 m

50 m

answer is A.

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Detailed Solution

Relative speed of both $\Rightarrow 11 - 10 = 1 k m p h$

$Relative distance = s p e e d \times t i m e =$

$1 k m p h \times \frac{6}{60} k m \Rightarrow \frac{1}{10} k m \Rightarrow 100 m$

distance between the police man = 200 – 100 = 100 m

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