1.

A path 3.5 m wide runs inside along the boundary of a square field whose side is 65 m.Find the area of the path. Also find the cost of manuring the rest of the field at the rateof 25 per square metre.

Answer»

Side of outer sq = 65m width of path = 3.5mcost of measuring = 25 rupees/sq metreside of inner sq = 65 - (2 * 3.5) = 58marea of path. = 65 * 65 - 58 * 58 = 4225 - 3364 = 861 sq metrescost of measuring the rest of the field = 3364 * 25 = ₹ 84100



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