There are two inlet pipes to a tank, one taking 8 minutes and the other taking 12 minutes to fill the tank. Find the capacity of the tank if for every second 5 gallons of water is pumped into the tank by the two taps.1) 1600 gallons                       2) 1440 gallons           3) 1200 gallons                       4) None

Three filling pipes, R, S and T, together, can fill an empty tank in two hours. S can fill the tank four times as fast as T. Initially, R alone is opened and after exactly x hours, it is closed and immediately S and T are opened together. The tank is full after exactly another y hours. If the tank was filled in a total of 4 hours, and x ≠ y, find the time (in hours) that T alone would take to fill the tank.6201224

Pipe X, Y and Z can fill a tank in 10 minutes, 5 minutes and 10 minutes respectively. Find the time taken by the tank to be filled, if all the pipes are opened simultaneously.

Two water taps together can fill a tank in hours. The tap of the larger diameter takes 10 hours less than the smaller one to fill the tank separately. Find the time at which each tap can separately fill the tank.

Three pipes can fill a tank in 6, 10, 15 hours respectively. If they are opened together, how long does it take to fill the tank?

A tank has four emptying taps, all of equal efficiencies, but each fixed at th, th, th and th of the height of the tank respectively. Two filling taps, each of which individually can fill the tank in 200 minutes, are also connected to the tank. If the ratio of the efficiency of each emptying tap and the efficiency of each filling tap is 1 : 3, and all the six taps are opened simultaneously, in how much time will the empty tank be filled?