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How long will a boy take to run around a rectangular field with length 90m and breadth 45m, if he runs at the rate of 9km/h?
Answer this question with the base of 6 standard because this is from my brother
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Perimeter of the rectangle =270m
speed in km/h=9km/h speed in m/s = 9*5/18=2.5 m/s
S=d/t
2.5=270/t
t=270/2.5
t=108 s =1 min 48 s
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