Mrs. Kaushik has a square plot with the measurement as shown in the figure. She wants to construct a house in the middle of the plot. A garden is developed around the house. Find the total cost of developing a garden around the house at the rate of Rs 55 per m2.

Area of the square plot = Side2 = 252 = 625 square metre

Area of the house construction part = length x breadth

= 20 x 15 = 300 sq m

Area of garden = 252 – 15 × 20

= 625 – 300

= 325 m2

Thus, total cost of developing a garden around the house at the rate of Rs 55 per m2 = 325 × 55

= Rs 17875

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