Question

A wall of a length 50 m and height 10 m is to be built. One-tenth of its volume is cement and the rest are bricks. Find the volume of the bricks used in it if the breadth of the wall is 2 m?

Answer 1

Answer:

The volume of the bricks used is $900\ cm^{3}$

Step-by-step explanation:

Given that the length of the wall is 50 m, height is 10 m, and the breadth of the wall is 2 m.

Therefore, the equation of the total volume is given as,

           $V=l\times b\times h$

Where l = length, b = breadth, and h = height. So,

           $V=50\times 2\times 10\\\\V=1000\ cm^{3}$

One-tenth of its volume is cement, and the rest are bricks. Therefore, the volume of the cement used is given as follows,

The volume of the cement used =   $V\times \dfrac{1}{10} =1000\times\dfrac{1}{10} =100\ cm^{3}$

Now we can find the volume of the bricks used by subtracting the volume of the cement used from the total volume.

     Hence the volume of the bricks used = $1000-100=900\ cm^{3}$