Answer:
Area of the square ABCD \[\text{= side }\!\!\times\!\!\text{ side}\] \[\text{= 30 m }\!\!\times\!\!\text{ 30 m = 900 }{{\text{m}}^{\text{2}}}\] Area of the square PQRS \[\text{= side }\!\!\times\!\!\text{ side}\] \[\text{= }\!\!\{\!\!\text{ 30 - (1+1) }\!\!\}\!\!\text{ m }\times \{30-(1+1)\text{ }\!\!\}\!\!\text{ m}\] \[\text{= 28 m }\!\!\times\!\!\text{ 28 m = 784 }{{\text{m}}^{\text{2}}}\] (i) Area of the path = Area of the square ABCD ? Area of the square PQRS \[\text{= 900 }{{\text{m}}^{\text{2}}}\text{- 784 }{{\text{m}}^{\text{2}}}\text{ = 116}{{\text{m}}^{\text{2}}}\] (ii) Cost of the planting grass in the remaining portion of the garden at the rate of ` 40 per \[{{\text{m}}^{\text{2}}}\] = `\[\text{784}\times \text{4}0=\] ` 31360
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