How long it will take for a boy to run around a square field of area 25 hectare at 10 km/hr?
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1 hectare = 0.01 km^2
So, Area = 25 hectares = 0.25 square km
Side^2 =0.25 ie, side = 0.5km
Since the boy is running around we need to find the perimeter
Perimeter= 4×side =4×0.5=2
Time= distance÷speed
= 2/10 hrs
=0.2 hrs.
So, Area = 25 hectares = 0.25 square km
Side^2 =0.25 ie, side = 0.5km
Since the boy is running around we need to find the perimeter
Perimeter= 4×side =4×0.5=2
Time= distance÷speed
= 2/10 hrs
=0.2 hrs.
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