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? Options:
A) 6400	B) 6410	C) 6440	D) 6500	E) 6800
Number of bricks = Volume of Wall/Volume of Bricks   =800x600x22.5/21x11.25x6= = 6400   answer :6400
<result>A</result>
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?