Find the number of bricks each measuring 24 cm

Asked by admin @ 20/08/2021 in Math viewed by 277 People

Find the number of bricks, each measuring 24 cm x 12 cm x 8 cm,required to construct a wall 24 m long,8 m high and 60 cm thick,if 10% of the wall is filled with mortar?

Answered by admin @ 20/08/2021

The area of brick = 24×12×8 cm³
Area of wall = 2400×800×6000cm³

Area of wall occupied by bricks =90% of 2400×800×6000
=2400×800×600×9

No.of bricks = Area of wall occupied by bricks ÷ Area of bricks
= (2400×800×600×9) ÷ (24×12×8)
=4000000 bricks

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