A policeman sees a thief who is at a distance of 600 meters. he chases him at a speed of 10 km/hr and catches him in 12 minutes. find the speed of the thief in km/hr
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converting 12min in hr=1/5 hr
Now distance travelled by police = 2000m
now distance travelled by thief= 2000- 600m= 1400m (since thief was ahead by 600m)
Now considering that the thief starting running immediately after he saw the police
we get speed of thief=1.4×5= 7.0 km/ hr
Answer by vary if the thief starts to run after a little amount of time
Now distance travelled by police = 2000m
now distance travelled by thief= 2000- 600m= 1400m (since thief was ahead by 600m)
Now considering that the thief starting running immediately after he saw the police
we get speed of thief=1.4×5= 7.0 km/ hr
Answer by vary if the thief starts to run after a little amount of time
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