Find the no. of bricks, each measuring 18cm × 12cm × 10cm required to build a wall of 12m × 0.6m × 4.5m. If 1/10 of it's volume is taken in mortar.
Answers
Answer:
13,500 bricks are used in the walls.
Step-by-step explanation:
- We have to find the number of the brick used to make the wall if the 1/10 of its volume is taken out in mortar.
Given,
Dimension of brick = 18 × 12 × 10
Dimension of wall = 12×0.6 ×4.5 (in m)
= 1200 ×60 × 450 ( in cm )
Therefore;
Volume of brick = 18 × 12 × 10 = 2160cm³
and similarly;
volume of wall = 1200 ×60 × 450 = 32400000 cm³
as we know:
1/10th of its volume is taken out in mortar
Volume of remaining wall = Vol. of wall - 1/10th waste
= 32400000 - 32400000/10
= 32400000 - 3240000
= 29160000 cm³
No of Bricks = Volume of remaining wall / Volume of brick
= 29160000/ 2160 = 13,500 bricks
Therefore, 13,500 bricks are used in the walls.
Answer:
Step-by-step explanation: