AP ICET 25 July 2022 Shift 1 Solved Paper

Two taps $\mathrm{A}$ and $\mathrm{B}$ can fill an empty tank in 12 hours and 8 hours respectively while $\mathrm{C}$ can empty the full tank in 6 hours. If all the three taps are opened simultaneously then the time (in hours) in which the empty tank gets filled is