Delhi Police Constable 2012 Paper

Question : 53 of 100

Marks: +1, -0

The length, breadth and height of a room is 5 m, 4 m and 3 m respectively. The area of the four walls is –

Solution:

According to the question
L = 5 metre
B = 4 metre
H = 3 metre
Area of all four sides of the room

= 2(\L + \B) × \H

= 2(5 + 4) × 3

= 2 × 9 × 3

= 54\metre^2

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