how long will a boy take to run around a square field of side 25 meters,if he runs at the rate of 8km/hr?
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Distance=4*side=4*25=100m
Speed=8kmph=8*(1000m)/(3600sec)=(20/9)m/sec
Time=distance/speed
=100/(20/9)
=45sec
Speed=8kmph=8*(1000m)/(3600sec)=(20/9)m/sec
Time=distance/speed
=100/(20/9)
=45sec
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