How many bricks each 15 cm long ,12.5 cm wide and 6cm thick will be required to build a courtyard floor 12 m long, 1.5 high and 25 cm thick ?
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Answer:
4,000
Step-by-step explanation:
Brick = 15cm X 12.5cm X 6cm
Brick volume = 1125cm^3
Courtyard floor = 1200cm X 150cm X 25cm
Courtyard floor volume required = 4,500,000cm^3
4,500,000/1,125 = 4,000
4,000 bricks are required to fill the volume of the floor
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