A constructing four walls of length 25m,width 1.2m and height 10m by using bricks of dimensions 30cm × 22cm ×12cm × each. How many bricks are needed?
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area of cuboid= LBH
25 X 1.2 X 10 = 300
AREA OF BRICK = 30*12*22
=7299
7299-300
total 6999bricks needed
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