Question

The height of the wall is 5 times it's width and it's length is 8 times its height. If the volume of the wall is 12.8mcube , find it's length.

Answer 1

H = 5W
L = 8H

This means that : L = 40W

We have to find L * W * H
We can rewrite this as : L/8 * L/40 * L = 12.8

$\frac{L^3}{320} = 12.8$
$L^3=4096$
$L=16$