Concrete can be made by mixing cement, sand and gravel in the ratio 3: 6: 8 How much gravel is needed to make 850 m^3 of concrete.

Question

asked Jul 20, 2023 136k views

1 Answer

Aarth Tandel · Answer 1 · 2023-07-26T04:01:57+0000

The given ratio is 3:6:8 referring to cement, sand, and gravel, respectively.

Based on the given information, we can express the following

Now, we solve for x

$\begin{gathered} 17x=850 \\ x=(850)/(17) \\ x=50 \end{gathered}$

Now, we find the gravel using the ratio

$8x=8\cdot50=400$ Hence, they needed 400 cubic meters of gravel.