The dimensions of a rectangular park is 100m by 90m. Two roads 5m wide with its centre point. Find the cost of levelling the road at the rate of 50 square metre.
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area of lawn=50*70=3500
area of path= (6*50)+(6*70)-(6*6)
=300+420-36
=720-36
=684m
cost of levelling=684*550/100
=$3420
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