The average marks of the students of class A is 96. Some students of class A whose average marks are also 96 are transfer to class B and same number of students is transfer from B to A whose average marks are 48. As a result, the average marks of students of class A becomes 80. What fraction of students of class A are transfer?
1
\(\frac{1}{4}\)
2
\(\frac{1}{2}\)
3
\(\frac{1}{3}\)
4
\(\frac{1}{5}\)