How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 9 m x 6 m x 22.5 cm? Choose the correct choice:
A) 6400
B) 6410
C) 6440
D) 7200
E) 6800
Number of bricks = Volume of Wall/Volume of Bricks   =900x600x22.5/25x11.25x6= = 7200   answer :7200
<result>D</result>
How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 9 m x 6 m x 22.5 cm?