The area of four walls of a room is 144m².If the length of the room is thrice its breadth and the height is 3m. Find the area of the floor.
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Given : The area of four walls of a room is 144m².If the length of the room is thrice its breadth and the height is 3m.
To Find : the area of the floor.
Solution:
Area of floor = length * breadth
area of 4 walls = 2 ( length + breadth ) * height
length of the room is thrice its breadth
=> length = 3 * breadth
height = 3 m
=> 144 = 2( 3*breadth + breadth ) * 3
=> 24 = 4 breadth
=> 6 = breadth
length = 3 * 6 = 18m
Area of floor = 18 * 6 = 108 m²
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