how many bricks each of size 25 cm into 13.5 cm into 6 will be required to build of wall 8m long 70 cm broad and 32 CM thick resuming that there is no wastage
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volume of brick = 25×13.5×6
= 2025 cm
volume of wall = 8×70×32
= 17920 cm
no. of bricks = 17920÷2025
=8.849 or 9 bircks (ans)
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