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Question

Renuka 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. The total cost of developing a garden around the house at the rate of ₹ 55 per m2 is


  1. ₹ 17500

  2. ₹ 18500

  3. ₹ 16400

  4. ₹ 17875


Solution

The correct option is D

₹ 17875


The side of the square plot is 25m, length and breadth of the rectangular region is 20m and 15m respectively.
Area of the square plot = side2=252=625sq.m.

Area of the rectangular region = length × breadth

20×15=300 sq.m.

 area of the garden = 625 - 300 = 325 sq.m.

Cost of developing the garden = Area × Rate per sq.m

325×55= 17875

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