Question

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 ?

Answer 1

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