Find the number of bricks each measuring 25 cm into 12.5 cm into 7.5 cm required to construct a wall 12m long 10m high and 0.5m thick, while the cement and sand mixture occupies 1/20 of the volume of the wall
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Volume of Wall=1200×1000×50
Volume of Wall without cement and sand=1200×1000×50/1/20
Volume of Wall=300000000cm^3
Bricks required=300000000/Volume of 1 brick
Bricks=1280 bricks
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