9. A park of length 150 m and breadth 80 m has a uniform
path of width 5 m running all around the inside. The
250 m
remaining area is to be covered by grass. Find the cost of cementing the path at the rate of 8.50 per
m² and grassing at the rate of 2 per m^2
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Cost of grassing = 2 * 250=500
Cost of cementing=((150*80)-250)*8.50=99875
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