# Bricks

Openings in perforated bricks occupy 10% and brick has dimensions 30 cm, 15 cm and 7.5 cm. Calculate

a) the weight of a perforated bricks, if you know that the density of the full brick material is p = 1800 kg/m

b) the number of perforated bricks, which allowed the driver to load on the truck with a load capacity of 5 tons and avoid the car overload.

a) the weight of a perforated bricks, if you know that the density of the full brick material is p = 1800 kg/m

^{3}(1.8 kg/dm^{3})b) the number of perforated bricks, which allowed the driver to load on the truck with a load capacity of 5 tons and avoid the car overload.

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