how long will a men take round a square field of side 35m if he runs at the rate of 9km/hr
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Step-by-step explanation:
total permiter of square field=35*4=140m=0.14 km
and he travles at a speed of 9km/hr
time=distance/speed=0.14/9=0.015 hr=0.015*60*60=56 seconds
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