Answer:
3800
Step-by-step explanation:
You want to know the number of males if the ratio of females to males is 31:19 and there are 6200 females.
The ratio of males to females can be described by the proportion ...
[tex]\dfrac{\text{males}}{\text{females}}=\dfrac{19}{31}=\dfrac{m}{6200}\\\\\\m=6200\times\dfrac{19}{31}=200\times19=3800[/tex]
There are 3800 male students.