The cost of fencing around a square field is rupees 12000 . If the cost of the fencing per metre is Rupees 30 . Find the area of the square field.
(1) 625(m)².
(2) 400(m)².
(3) 900(m)².
(4) cannot be determined
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Cost of fencing per metre = Rs 30 Total cost of fencing = Rs 12000 So, the length of fencing (perimeter) = Total cost/ Cost per metre = 1200/30 = 400 m Now, length of fencing = Perimeter of the square field = 4 × side of the field Therefore, 4 × side of the field = 400 m or, side of the field = 400/4 m = 100 m So, area of the field = 100 m × 100 m = 10000 sq m. Read more on Sarthaks.com - https://www.sarthaks.com/102118/cost-fencing-around-square-field-12000-the-cost-fencing-per-metre-find-the-area-square-field
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