Question

$\huge\bf{Question :- \: \: }$

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.

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Answer 1

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As per the given info, first we need to find the whole area and then subtract the area occupied by the house.

Area of the square plot =25 m×25 m=625 m²

Now, total area = area occupied by the house = Area of rectangle with length 20 m and breadth 15 m.

∴ Area of the house =20 m×15 m=300 m²

Then, area occupied by the garden = Total area − area of the house =625−300=325 m²

Cost for 1 m²=Rs. 55

Then, total cost for developing a garden

=325×55=Rs. 17875

Hence, the answer is 17875.

Answer 2

Answer:

Area of the garden = Area of square plot - Area of house

Side of square plot=25m

Area of square plot side\times side

25\times25

=625\ m^2

Area of house =l\times b

length=20 m

breadth=15 m

Area of House=20\times15

=300\ m^2

Area of garden =625\ m^2-300\ m^2

=325\ m^2

Cost of developing a garden =Rs\ 55\times325\ m^2

=Rs 17,875