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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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Answer» 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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