A man walks around a circular park 4 times in 12 minutes. The radius of the park is 49m. Find the speed of man in km/h. ((Use Pi :-22/7))
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Answer:
Step-by-step explanation:
circumference of circular park = pie×2×r
=22/7×2×49
=44×7
=308 m
Total distance travelled = 308×4
=1232m
=1232/1000 km
Total time taken= 12 min
=12/60 hours
=1/5
speed = 1232/1000×5
=1232/200
=6.16 km/h
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