# Calculating Bags of Premixed Concrete for Patio Slab

## How many bags of premixed concrete are needed for the patio slab?

Which option provides the correct number of bags needed for the patio slab?

What is the calculation process to determine the number of bags required?

## Answer:

The correct option is Option 1, which states that you'll need 22 bags of premixed concrete for the patio slab.

Calculating the number of bags of premixed concrete needed for a patio slab involves converting the thickness to feet, calculating the area of the slab, and finding the volume. Firstly, the slab needs to be at least 2 inches thick, which is converted to feet by dividing by 12.

Next, the width and length of the slab are multiplied to determine the area in square feet. Then, the area is multiplied by the thickness to obtain the volume in cubic feet. By dividing the total volume by the volume of one bag of premixed concrete (0.30 cubic feet), the number of bags needed can be calculated.

Option 1, requiring 22 bags of premixed concrete, is the correct answer as it accurately calculates the amount needed for the patio slab. Utilizing the correct number of bags ensures the proper coverage and strength of the concrete for the slab construction.