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Question

A person walks at the rate of 4 km/hr.How long will he take to go round a square park 5 times , whose area is 2500 m2


Solution

Area of square =side2=2500 m2

side2=2500

side=2500

side=50 m

Perimeter of Square =4×side=4×50=200 m

Distance to be covered in 5 rounds =5×200=1000 m=1 km

We know, Time=DistanceSpeed=1 km4 km/hr=14 hours=14×60 minutes=15 minutes

He will take 15 minutes to go round a square park 5 times .
 

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