A house is in the shape of a cubical of length 20m, breadth 10m and he – InterviewSolution

1.	A house is in the shape of a cubical of length 20m, breadth 10m and height 5m. It has an opening of 2m × 2m on one of the walls for ventilation. Find the cost of cementing the walls of the house at Rs. 5 per m2 .
Answer» A house is in the shape of a cubical of length 20m, breadth 10m and height 5m. It has an opening of 2m $\times$ 2m on one of the walls for ventilation. Find the cost of cementing the walls of the house at Rs. 5 per $m^{2}$ .

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