How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm?
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volume of each brick= 25 cm x 11.5 cm x 6cm
=1725 cu. cm
volume of wall = 8 m x 6 m x 22.5 cm
= 800cm x 600cm x 22.5cm
= 1080000 cu. cm
hence no. of bricks needed= 626
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