The measure of the speed with which the cougar ran can be calculated as distance covered over time taken, as shown below;
[tex]\begin{gathered} \text{Speed}=\frac{dis\tan ce\text{ covered}}{\text{time taken}} \\ \text{Speed}=\frac{50}{15} \\ \text{Speed}=3\frac{5}{15} \\ \text{Speed}=3\frac{1}{3} \\ \text{Speed}=3.33\text{ y/sec} \\ \text{That is, its speed is 3.33 yards per second} \end{gathered}[/tex]