Question

A rectangular brick measures 18 cm by 19 cm by 6 cm. Find the number of bricks
required to build a rectangular wall 4.5 m wide, 18 cm thick and 3.6 m high.

Answer 1

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Answer 2

Answer:

1421 bricks

Step-by-step explanation:

Volume of brick =

$l \times b \times h$

Thus,volume of brick = 18×19×6

=

$2052 {cm}^{3}$

Volume of wall = 450×18×360

${2916000m}^{3}$

No.of bricks required = Vol. of wall

Vol.of brick

= 2916000/2052

= 1421 bricks (approx.)

Hence,1421 bricks are required to build such a wall