Answer:
boxes
Explanation:
Given that pens received from the parents' society
boxes.
Pens received from the Student Society
boxes.
Pens received as gift boxes
boxes.
So, the total number of boxes of pens received
boxes
![=\frac {17}{4} + \frac {17}{6} +(15)/(4)\\\\=\frac {65}{6}\\\\=10\frac {5}{6}.](https://img.qammunity.org/2021/formulas/mathematics/high-school/924zlua4s5mnsjvnkt5alpumrkkjoa0pk0.png)
Hence, the total number of boxes of pens received
boxes.