how long will a man take to make 2 revolutions of a circular park of radious 70 meters at the rate of 4km/hr ?
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the total distance manhas to cover =2 *circumference of the circle
=2*22/7*70=440
=0.44km
time=distance/speed
time=0.44/4
=o.11hr
hemant9430:
sorry but it's a wrong answer
it's answer is 13min 12sec but I don't konw who it comes
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