Question

the Length, breadth and height of a wall is 5m,30cm and 3 m how many bricks of dimensions 20cm ×10 cm× 7.5 cm are required to build the wall​

Answer 1

3000 pcs

Explanation:

given:

the Length, breadth and height of a wall is 5m,30cm and 3 m

find:

how many bricks of dimensions 20cm ×10 cm× 7.5 cm are required to build the wall​

solution:

vol of the wall = 5 x 3 x 0.30= 4.5 m³

vol per brick = 0.20 x 0.10 x 0.075 = 0.0015 m³

number of bricks = wall volume

vol. per brick

= 4.5 / 0.0015

= 3000 pcs of bricks required