How many bricks of measurements 25 cm × 11.25 cm × 6 cm are required

1.	How many bricks of measurements 25 cm × 11.25 cm × 6 cm are required to built a wall with measurements 8m × 6m × 22.5 cm? A) 6000 B) 6400 C) 2000 D) 8400
Answer» Correct option is (B) 6400 Number of bricks \(=\frac{\text{Volume of wall}}{\text{Volume of a brick}}\) \(=\frac{800\times600\times22.5\,cm^3}{25\times11.25\times6\,cm^3}\) \(=\frac{32}5\times1000\) \(=32\times200=6400\) Correct option is B) 6400

How many bricks of measurements 25 cm × 11.25 cm × 6 cm are required to built a wall with measurements 8m × 6m × 22.5 cm? A) 6000 B) 6400 C) 2000 D) 8400

Answer»

Correct option is (B) 6400

Number of bricks \(=\frac{\text{Volume of wall}}{\text{Volume of a brick}}\)

\(=\frac{800\times600\times22.5\,cm^3}{25\times11.25\times6\,cm^3}\)

\(=\frac{32}5\times1000\)

\(=32\times200=6400\)

Correct option is B) 6400