Mukesh walks around a circular track of
radius 14 m with a speed of 4 km/hr. If he
takes 20 rounds of the track, for how long
does he walk?
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Total length covered : 2πr×20
= 2×22/7×14×20
= 1760metres = 1.76km
Speed =4km/hr
Time = 1.76/4
= 0.44hours
= 26.4 minutes
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