A wall 9 m long, 6 m high and 20 cm thick, is to be constructed using bricks of dimensions 30 cm, 15 cm and 10 cm. How many bricks will be required ?
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Solution
It is given that Length of the wall =9m=9×100cm=900cm Height of the hall 6m=6×100cm=600cm Breadth of the wall =20cm We know that Volume of the wall =900×600×20cm3=10800000cm3 Volume of one Brick =30×15×10cm3=4500cm3 So we get Number of bricks required to construct the wall=volumeofwallVolumeofonebrick=108000004500=2400