Question

How many bricks each 25 cm by 15 cm by 8 cm, are required for a wall 32 m long, 3 m high and 40 cm thick?


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Answer 1

Answer:

Given

Dimensions of brick = 25cm x 15cm x 8cm

The volume of brick - 25 x 15 x 8

= 3,000cm³

The dimensions of wall = 32m x 3m x 40cm

Let change the m in cm we have

Volume of wall = 3200 x 300 x 40

=38400000cm³

Bricks required =volume of wall/ volume of one brick

$=\frac{38400000}{3000}$

= 12,800 bricks