Solution:
Given:
The ages in years of the 10 professors at a college to be;
44,38,45,34,28,56,54,28,61,48
Professors who are younger than 47 = 44,38,45,34,28,28
Number of Professors who are younger than 47 = 6
The percentage of these professors who is younger than 47 =
![\begin{gathered} =(6)/(10)\text{ x 100} \\ =60\text{ \%} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/zaskg3i5uc4gb70f1bbl3cj5hbsnwpvevf.png)
Therefore, the percentage of professors who is younger than 47 is 60%