BPI Multifamily Building Analyst Practice Exam 2025 - Free Practice Questions and Study Guide

Question: 1 / 400

What is the volume of a wall that is 8' tall, 20' long, and 4" deep?

60 ft3

53.3 ft3

To calculate the volume of the wall, it's essential to use the formula for the volume of a rectangular prism, which is volume = height × length × depth.

First, we need to make sure all the dimensions are in the same units. The height is given as 8 feet, the length is 20 feet, and the depth is given in inches (4 inches). We convert the depth from inches to feet by knowing that there are 12 inches in a foot:

4 inches ÷ 12 inches/foot = 1/3 feet or approximately 0.33 feet.

Now, we can plug the values into the volume formula:

Volume = height × length × depth

Volume = 8 feet × 20 feet × (1/3 feet)

Calculating this step by step gives:

Volume = 8 × 20 = 160 square feet

Volume = 160 sq ft × (1/3 ft) = 160/3 = 53.33 cubic feet.

This rounds off to approximately 53.3 cubic feet. Therefore, the volume of the wall is 53.3 ft³, confirming that this is the correct answer.

Understanding the conversion of inches to feet is a critical step in

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50 ft3

40 ft3

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