Tap a fill a tank in 4 hours whereas tap B empties the full tank in 24 hours. A and B are opened alternately for hour each. Every 2 hours the level of water is found to increase by 0.5 m. the depth of the tank is `2. 4\ m` b. `6. 4\ m` c. `4. 8\ m` d. `24\ m`

Tap A can fill a tank in 6 hours and tap B can empty the same tank in 10 hours. If both taps are opened together, then how much time (in hours) will be taken to fill the rank?

Pipe A can fill a tank in 10 hours, Pipe B can fill the same tank in 15 hours. Pipe C can empty the full tank in 20 hours. Pipes A, B and C are opened alternatively for one hours each. If A is opened first, then how many hours will they take to till the empty tank? 24 h r s b. 25 h r s c. 26 h r s d. 24 2/3h r s

A tap can fill an empty tank in 48 minutes whereas another tap can empty the full tank in 2 hours. If both the taps are opened at 11:40 a.m., when will the empty tank be filled ?

A tap can fill a tank in 10 hours and another tap can empty the tank in 15 hours. If both the taps are opened together how much time will be taken to fill (2)/(3) of the tank.

Pipes A and B together can fill a tank in 16 hours, where as pipe C alone can empty the full tank in 24 hours. A and B were opened together for 10 hours and then closed. Pipe C was then opened . The tank will now be emptied by C in :

A tap A can fill a cistern in 4 hours and the tap B can empty the full cistern in 6 hours. If both the taps are opened together in the empty cistern, in how much time will the cistern be filled up?