Area Aptitude Test Paper 8

36) The length, width, and height of a room are 7 m, 8 m, and 9 m respectively. What is the total area of the walls?

1. 270 sq. m.
2. 260 sq. m.
3. 265 sq. m.
4. 255 sq. m.

Answer: A

Explanation:

Area of the 4 walls of a room = 2 (Length + Breadth) * Height

Given that, Length = 7 meters, Width or Breadth = 8 meters and Height = 9 meters

So, the required area, A = 2 (7 + 8) * 9

= 2 * 15 * 9

= 270 sq. m.

 

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