A tap can fill a tank in \(5\frac{1}{2}\) hours. Because of a leak, it took \(8\frac{1}{4}\) hours to fill the tank. In how much time (in hours) will the leak alone empty 30% of the tank?
1
\(\frac{17}{2}\)
2
\(\frac{5}{2}\)
3
\(\frac{9}{2}\)
4
\(\frac{99}{20}\)