a person walks at the rate of 4 km/hr. How long will he take to go round a square park, whose area is 2500m^2?
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area of square = 2500m^2
side of square = sq rt 2500 = 50m
distance travelled in 1 round = 50(4) =200 m
distance travelled in 5 rounds = 200(5) =1000m = 1 km
speed =4 km/hr
time taken = distance /speed
= 1/4 hr
= 15 mins.
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Step-by-step explanation:
Area of Square Park = 2500 sq m.
Side of the park = sq rt of 2500 = 50 m.
Perimeter of the square = 4*50 = 200 m.
In one round he has to travel 200 m.
He will take 3minutes to go a round of Square park....
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