1. A thief is stopped by a policeman from a distance of 350 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 7 km/h and that of police man as 12 km/h, how far the thief would have run, before he is overtaken?





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  • By: anil on 05 May 2019 02.14 am
    Since the thief is escaping from the police man, thus they both are running in same direction. Speed of thief = 7 km/hr and speed of policeman = 12 km/hr => Relative speed = 12 - 7 = 5 km/hr Distance between them = 350 metres = 0.35 km => Time taken = $$frac{distance}{speed}$$ = $$frac{0.35}{5} = frac{7}{100}$$ hr $$ herefore$$ Distance covered by thief before he was caught = $$7 imes frac{7}{100}$$ = 0.49 km = 490 metres => Ans - (A)
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