How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm?
5600
6000
6400
7200
Explanation:
Number of bricks = $\dfrac{Volume of the wall}{Volume of 1 brick}$ = $(\dfrac{800 \times 600 \times 22.5}{25 \times 11.25 \times 6})$ = 6400.
Number of bricks = $\dfrac{Volume of the wall}{Volume of 1 brick}$ = $(\dfrac{800 \times 600 \times 22.5}{25 \times 11.25 \times 6})$ = 6400.