The number of bricks required to build a wall 5 m long,4m high and 25cm thick.Each brick being 20cm long , 10 cm broad and 6.25 cm high is?
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volume of wall is. 500×400×25=5000000 cm sq.
volume of each brick = 10×20×6.25= 1250 cm sq.
total brick= 5000000 ÷ 1250= 4000 bricks.
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volume of each brick = 10×20×6.25= 1250 cm sq.
total brick= 5000000 ÷ 1250= 4000 bricks.
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