Question

A mason wants to construct a wall of dimensions of 3000 cm into 2700cm. The dimensions of each brick required for the construction of teh wall is 45 cm into 15 cm. Find teh number of bricks needed to construct teh wall.

Answer 1

Answer:

12 000  

Step-by-step explanation:

Area of wall = 3000 cm × 2700 cm = 8 100 000 cm²

Area of brick = 45 cm × 15 cm = 675 cm²

$\text{No. of bricks needed} = \text{8 100 000 cm}^{2} \times \dfrac{\text{1 brick}}{\text{ 675 cm}^{2}} = \textbf{12 000 bricks}$