how many bricks of length 12.5 CM breadth 7.5 cm and height is equal to 5 centimetre are required to build the wall of length 12.5 metre height 15 and breadth 50 cm
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measurements of wall in cm
l=1250cm
b=50cm
h=1500cm
volume of wall =l×b×h
=1250×50×1500
=93750000cm^3
volume of 1 brick =12.5×7.5×5
=468.75cm^3
no. of bricks=volume of wall /volume of brick
=93750000/468.75
=200000
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