Assume total number of students in the University Y to be 100.
As 80% of these students are under graduates, we would have 80 UG's
Of the undergraduate students, since 60% are out of state(we would have 48 Oos UG)
Since this is 75%(3/4 rth's of the total Oos), Totol OoS students are x
\(\frac{3x}{4} = 48\)
\(x = \frac{48*4}{3} = 64\)
This makes the total Out of State students(Oos), \(\frac{64}{100} or \frac{16}{25}\) of the total students(Option A)
_________________
You've got what it takes, but it will take everything you've got