What term describes a comparison of two quantities with different units?

• A. Ratio
• B. Rates
• C. Proportion
• D. Magnitude

Answer: (B)

The term that describes a comparison of two quantities with different units is "rates." Rates specifically measure how one quantity relates to another in different units, often used in contexts like speed (miles per hour), price (cost per item), and density (mass per volume). This distinction is essential because rates provide a meaningful way to evaluate the relationship between disparate units, enabling individuals to make comparisons or decisions based on that data.

In contrast, a ratio involves a comparison of two quantities with the same units. A proportion refers to an equation that states two ratios are equivalent, and "magnitude" typically refers to the size or extent of something rather than a specific comparison between differing units. Understanding these terms helps clarify how we interpret various measurements in everyday situations.