The dimensions of a brick are 24 cm × 12 cm × 8 cm. The number of

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The dimensions of a brick are 24 cm × 12 cm × 8 cm. The number of bricks that will be required to build a wall 24 m long, 8 m high and 0.6 m thick, if 10% of the wall is filled with mortar, is

Options:

A . 40000

B . 45000

C . 50000

D . 55000

Answer: Option B

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1 Comments

G Jyotheeswar 2016-03-13 16:19:09

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Volume of the wall = 24m Ã— 8m Ã— 0.6m
=2400 Ã— 800 Ã— 60 cm cube
Volume of the brick = 24 Ã— 12 Ã— 8 cm cube
Percentage of the mortar in the wall is 10%.
Therefore, percentage of the bricks in the wall is 90% = 9/10%
Brick's volume in the wall = volume of the wall Ã—

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