Respuesta :


[tex] \frac{2}{5} \times 20 = 8[/tex]

Answer: The answer is 8 students.


Step-by-step explanation:  Given that there is a bus full of students in which the total number of students is 20.

Also, it is given that two-fifth of the students pack their lunches.

So, the number of students who pack their lunches is given by

[tex]n=\dfrac{2}{5}~\textup{of the total number of students}=\dfrac{2}{5}\times 20=2\times 4=8.[/tex]

Thus, the number of students who pack their lunches is 8.