Given inner side of square park, \\\\(s = 100 \\ cm\\\\) Area of inner square \\\\(={100}^{2}= 10000 \\ cm^2\\\\)width of path,\\\\( w = 5 \\ cm\\\\)Outer side of square \\\\(= 100 + 5+5 = 110 \\ cm\\\\) Area of outer square \\\\(= {110}^{2} = 12100 \\ cm^2\\\\) Area of path \\\\(= 12100 - 10000 = 2100 \\ cm^2\\\\)Cost of cementing at the rate of Rs \\\\(250\\\\) per \\\\(10\\\\) sq cm \\\\(=\\\\) Rs \\\\(250 \ imes 210=\\\\) Rs \\\\(52500\\\\)\\\\(\ herefore \\\\) Cost of cementing a \\\\(2100 \\ cm^2\\\\) path \\\\(=Rs. \\ 52500\\\\)