Pipe A can fill a tank in 12 hours. Pipe B can fill 333% part of the same tank in 6 hours, whereas pipe C can empty the full tank in x hours. When all the three pipes are opened together, 1315 part of the tank is filled in 12 hours. How much time (in hours) will A and C together take to fill 40% part of the tank?

Three taps A, B, and C can fill an empty tank in 30 minutes, 20 minutes, and 10 minutes respectively. When the tank is empty, all three taps are opened. Taps A, B, and C release chemical solutions P, Q, and R respectively. What is the proportion of solution R in the tank after 3 minutes?

Two inlet pipes J and T can fill a tank in 120 minutes and 144 minutes respectively. If an outlet pipe Z is opened along with them, all three pipes together fill the tank in 240 minutes. How long will pipe Z alone take to empty the full tank?