SSC CPO QUANT (PIPE AND CISTERN) QUIZ

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Question 1:

Pipe A can fill a cistern in 24 minutes. Pipe B can fill the same tank in 40 minutes. Both the pipes are opened simultaneously. Pipe A was closed 8 minutes before the tank was filled. In how many minutes will the tank be filled?

Question 2:

A water tank has two holes. The 1st hole alone empties the tank in 9 minutes and 2nd hole alone empties the tank in 6 minutes. If water leaks out at a constant rate, how many minutes does it take if both the holes together empty the tank?

Question 3:

Tap A can fill an empty tank in $10 \mathrm{hrs}$. Tap B can fill the same empty tank in $12$ hrs and tap 'C' can empty the full tank in $20$ hrs. If tap C is opened for entire period, tap A and tap B are opened in alternate hours starting with A, then tank will be full in hrs?

Question 4:

A cistern can be filled by two pipes $A$ and $B$ in 4 and 6 h respectively. Whereas the filled cistern can be emptied by a third pipe $C$ in $8 h$. If all the pipes are opened together, then how much time will be taken to fill the reservoir completely?


Question 5:

Pipe A and Pipe B can fill a tank in 4 and 16 hours respectively. In how many hours they together can fill the tank.

Question 6:

Two inlet taps A and B can fill a tank in 36 minutes and 60 minutes respectively. Find the time taken by both the taps together to fill $\frac{1}{6}$ th of the tank.

Question 7:

Two pipes A & B individually fill an empty tank in 15 hours and 45 hours respectively. pipe  C can empty the same tank in 30 hours. If all three pipes opened together in the tank, then in how many hours the tank will be filled completely?

Question 8:

A and B two pipes can fill a tank in 24 hours and 48 hours, respectively. If both pipes are opened simultaneously, how much time will it take to fill the tank?

Question 9:

Pipes A and B can fill a tank in 36 minutes and 45 minutes, respectively. Both these pipes were opened simultaneously. After 20 minutes, a leak at the bottom of the tank was spotted which was immediately sealed. The tank was full in another 15 minutes. The leak alone can empty the full tank in:

Question 10:

Pipes A and B can fill a tank in 10 hours and 13$\frac{1}{3}$ hours, respectively. Pipe C is an emptying pipe. When all the three pipes are opened together, the tank is filled in 8 hours. In how many hours will Pipe C alone empty 25% of the tank?