How many 25 cm × 11.25 cm × 6 cm bricks will be required to construct an 8 m × 6 m × 22.5 cm wall?(ignoring other material used)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 6400
Volume of a brick = 25 cm × 11.25 cm × 6 cm
Volume of the wall = 8 m × 6 m × 22.5 cm × (100 × 100) cm3
Thus, the number of bricks required = { 8 m × 6 m × 22.5 cm × (100 × 100)}/{25 cm × 11.25 cm × 6} = 6400