A person can walk at 3.6 km/hr. how long will he take to go around a
rectangle of sides 30 m and 40m?
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3.6km/hr
perimeter of rectangle 2(a+b) =140m
he takes 1 second to go 1m
so he will take 140 seconds to go 140m
140 seconds =
perimeter of rectangle 2(a+b) =140m
he takes 1 second to go 1m
so he will take 140 seconds to go 140m
140 seconds =
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