Question

how many bricks of 20×6×4cm.how many bricks are needed to bild of wall 10×2×6m ​

Answer 1

Answer:

The number of bricks required is 250,000  .

Step-by-step explanation:

Given as :

Let The number of bricks required = n

The dimension of brick = 20 cm × 6 cm × 4 cm

i.e length = 20 cm

breadth = 6 cm

Height = 4 cm

So, Volume of cuboid bricks = 20 cm × 6 cm × 4 cm = 480 cm³

Again

The dimension of wall = 10 m × 2 m × 6 m

i.e length = 1000 cm

breadth = 200 cm

Height = 600 cm

So, The volume of wall = 1000 cm × 200 × cm × 600 cm

or, The volume of wall = 12 × $10^{7}$  cm³

The number of bricks = $\dfrac{volume of wall}{volume of bricks}$

i.e n = $\dfrac{12\times 10^{7}}{480}$

Or, n = 250,000

Hence, The number of bricks required is 250,000  . Answer