area of park = 125^2 = 15625
area inside walk is (125-2*3)^2 = 119^2 = 14161
so, area of walk = 1464
cost is thus 1464 * 4.5 = 6588
A 3m wide path runs along the inside of a sq. Park of side 125m.find d cost of constructing it at Rs 4.50per square meter.
Gve me soltn and ans. Is Rs 6588
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Thank u :)
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