Pipe A can fill an empty tank in 6 h and pipe B in 8 h. If both the pipes are opened at the same time and pipe A is closed after 2 hours, then how long will pipe B alone take to fill the remaining tank?
1
3 h
2
4 h
3
\(3\frac{1}{3}\) h
4
\(\frac{12}{5}\) h