What is the time taken by a person to cover one round of a circular park of diameter 210 m if he walks at a speed of 6 km/hr ? (\pi=\frac{22}{7})

Explanation

Circumference of the park = \pi d = \frac{22}{7} \times 210 = 660\text{ m} = 0.66\text{ km}. Walking time = \frac{\text{Distance}}{\text{Speed}} = \frac{0.66}{6} = 0.11\text{ hours}. Converting to minutes gives 0.11 \times 60 = 6.6\text{ minutes}.

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