Question

How many bricks will be required for constructing a wall which is 16 m long, 3 m high and 22.5 cm thick, if each brick measures 25 cm x 11.25 cm x 6 cm ?

Answer 1

Length of the wall = 16 m = 16 x 100 cm = 1600 cm 

Height of the wall = 3 m = 3 x 100 cm = 300 cm

Breadth of the wall = 22.5 cm

Volume of the wall = 1600 x 300 x 22.5 cm³ = 1,08,00,000 cm³ 

Volume of one brick = 25 x 11.25 x 6 cm³ = 1687.5 cm³ 

Number of bricks required to construct the