How many bricks each 25 cm ×15 cm ×8cm are required to build a wall 10m long ,4 m high and 48 cm thick
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let the no of bricks to make wall will be x.
we have volume of 1 brick=25×15×8cm^3
=3000cm^3.
now we have vol of wall =10m×4m×48cm
=1000×400cm×48cm
=19200000cm^3
so no of bricks=19200000÷3000
=6400
Hence total no of bricks is 6400
we have volume of 1 brick=25×15×8cm^3
=3000cm^3.
now we have vol of wall =10m×4m×48cm
=1000×400cm×48cm
=19200000cm^3
so no of bricks=19200000÷3000
=6400
Hence total no of bricks is 6400
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