A wall is to be build using bricks of dimensions 20 cm X 16 cm X 8 cm. How many bricks will be required, if the wall is 2000 cm long 500 cm high and 64 cm thick?
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No.of bricks = Volume of wall ÷ Volume of brick
= L×B×H ÷ L×B×H
= 2000×500×64 ÷ 20×16×8
= 64000000 ÷ 2560
= 25000 bricks
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