Question

Question 7.

A mason constructs a wall of dimensions 270 cm × 300 cm × 350 cm with the bricks each of size 22.5

cm × 11.25 cm × 8.75 cm and it is assumed that space is covered by the mortar. Find the number of

bricks used to construct the wall.​

Answer 1

Answer:

Volume of wall=(270)(300)(350)=28350000cm

3

Volume of brick=(22.5)(11.25)(8.75)=2214.84375cm

3

8

1

space is covered by morter =

8

28350000

=3543750

Surface constructed=28350000−3543750=24806250

Number of bricks=

2214.84375

24806250

=11200