How long will a boy take to walk at 3km\hr once around a circular park of radius 210m
Answers
Answer:
26 minutes 40 seconds
Step-by-step explanation:
Given the diameter of the park d = 420 m
Now, the circumference of the park = π*d
= 420* 22/7
= 60 * 22
= 1320 m
= 1320/1000 km
= 1.320 km
{since 1000 m = 1 km}
Given speed = 3 km/hr
Total time taken = Total distance covered/Speed
= 1.320/3
= 0.44 hr
= 0.44 * 60 [since 1 hr = 60 minutes]
= 26.40
= 26 minutes 40 seconds
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