Question

_____ is defined as a certain number of units of the first quantity compared to one unit of the second quantity.

• A. Proportion
• B. Rate
• C. Unit rate
• D. Ratio

Answer 1

The correct option is C Unit rate

Unit rate is defined as a certain number of units of the first quantity compared to one unit of the second quantity.
Example: $50km/2$ hours, here the second quantity is $2$.
On dividing $50$ by $2$ we get, $25km/hour$, here the second quantity is unit $\left(1\right)$ hour.