High School

"To make concrete, you use 2 parts cement, 3 parts water, and 1 part sharp sand. How much water and sharp sand will you need to mix with 4 parts of cement?"

Note: The original question is already sensible and clear. Here is the formatted version:

To make concrete, you use 2 parts cement, 3 parts water, and 1 part sharp sand. How much water and sharp sand will you need to mix with 4 parts of cement?

Answer :

Final answer:

You need 6 parts water and 2 parts sharp sand to mix with 4 parts cement to maintain the same proportion as in the original mix.

Explanation:

To determine how much water and sharp sand you need in relation to the 4 parts of cement, you need to preserve the proportions given in the initial mix.

Originally, the ratio was 2 parts cement: 3 parts water: 1 part sharp sand. If we double the cement, we need to then double the amount of water and sand. So if you use 4 parts cement, you will need 6 parts water and 2 parts sharp sand for the same proportion.

Learn more about proportion here:

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