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?
Answers
Answered by
35
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
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
mili16:
Sorry Pepper,
i made a mistake in calculation the answer is 450000
its ok
Answered by
42
Volume of the wall = (2400 x 800 x 60)
Volume of bricks = 90%
of the volume of the wall =[(90/100)*2400 *800 * 60]
Volume of 1 brick = (24 x 12 x 8)
Number of bricks=(90/100)*(2400*800*60)/(24*12*8)=45000
Volume of bricks = 90%
of the volume of the wall =[(90/100)*2400 *800 * 60]
Volume of 1 brick = (24 x 12 x 8)
Number of bricks=(90/100)*(2400*800*60)/(24*12*8)=45000
Similar questions