Pipes And Cisterns
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Avg score: 27% • Most missed: “Taps A and B can fill a tank in 6 hours and 9 hours respectively and tap C can f…”
Pipes And Cisterns
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25 Questions

1. Two pipes can fill a cistern in 10 hour and 12 hour respectively, while the third can empty it in 20 hour. If all pipes are opened together, then the cistern will be filled in
2. Tap A and B together can fill a tank in T hours. If A fills alone it take T+5 hourss. If B fills alone and fills the same tank, it will take T+45 hours. What is T?
3. Two pipes A and B can fill a tank in 36 bours and 45 bours respectively. If both the pipes are opened together, bow much time will be taken to fill the tank?
4. Two taps can fill a tank in 12 min and 18 min respectively. Both the taps are kept open for 2 min and then the tap that fills the tank in 12 min is turned oF. In how many more minutes will the tank be 4Q filled?
5. Two pipes A and B can fill a tank in 24 hours and 30 hours respectively. If both the tap are opened then how much time will be needed fill it completely?
6. A tap can fill a tank in 15 hours. But due to leakage in the bottom; it is filled in 20 hours. If the tank is full, what amount of time is required to empty it completely.
7. Taps A and B can fill a bucket in 12 min and 15 min respectively. If both the taps are opened and tap A is closed after 3 mins, how much further time would it take for tap B to fill the bucket?
8. Taps A and B can fill a tank in 6 hours and 9 hours respectively and tap C can fill it in 12 hours. If all of the taps are opened together. What amount of time is required to fill it,
9. Two pipes can fill a tank in 10 hours and 12 hours respectively while a third, pipe empties the full tank in 20 hours. If all the three pipes are opened together, in how much time will the tank be filled?\r\n
10. Two pipes can fill a cistern in 14 hours and 16 hours respectively. The pipes are opened together and it is found that due to leakage in the bottom it took 32 minutes more to fill the cistern.When the cistern is full, in what time will the leak empty it?
11. A cistern has two taps which fill it in 12 minutes and 15minutes respectively. There is also a waste pipe in the cistern. When all the 3 are opened ,the empty cistern is full in 20 minutes. How long will the waste pipe take to empty the full cistern?
12. A tank has two taps A and B. A and B can fill the tank completely in 45 minutes and in 60 minutes respectively. If both the taps are opened alternatively for 1 minute, then in what time the empty tank will be filled completely?
13. An electric pump can fill a tank in 3 hours. Because of a leakage in the tank it took 3 hours to fill the 2 tank. If the tank is full, how much time will the leak take to empty it ?
14. Pipes A and B can fill a tank in 12 min and 16 min respectively. Both are kept open for 'N' min and then B is closed and A fills the rest of the tank in 5 min. The time 'N' after which B was closed is:
15. Two pipes A and B can fill a tank in 36 min. and 45 min. respectively. A water pipe C can empty the tank in 30 min. First A and B are opened. after 7 min, C is also opened. In how much time, the tank is full?
16. Two taps can fill a tank in 14 hours and 16 hours respectively. The taps are opened but it is found that because of leakage in the base it took 32 minutes more to fill the tank. Once the tank is full, in what time, leakage will empty the full tank?
17. If two pipes function together, tbe tank will be filled in 12 hours. One pipe fills the tank 10 hours faster than tbe otber. How many hours does it take the second pipe to fill the tank?
18. A tank has an outlet tap that can empty it in 40 minutes. An inlet tap with double radius that of outlet is also opened then the full tank will be emptied in:
19. Due to hole at the botom of the tank, a tap takes 2 more minutes to completely fill the tank. Due to leakage of water through this hole, a bucket filled completely with water gets emptied in 4 minutes. In how much time can the tap fill the tank, if there was no hole at the bottom at the tank?
20. A tap can fill a tank in 6 hours. After a large portion of the tank is filled, three more taps of same capacity are opened. In what time will the tank be filled completely?
21. Two pipes A,B can fill a tank in 24 min. and 32 min. respectively. If both the pipes are opened together, after how much time B should be closed so that the tank is full in 18 min.?
22. A taps can fill a tank in x hours and another tap can exhaust it in y (y>x) hours. If both the Taps are opened, In what time will the tank be filled?
23. Two pipes A and B can ill a tank in 36 hours and 45 hours respectively. If both the pipes are opened together, how much time will be taken to fill the tank?
24. Two Pipes A and B can fill a tank in 1 hour and 75 minutes respectively. There is an outlet pipe C If all the three e taps are opened together, the tank is full in 50 minutes. What amount of the reality of the situation will become obvious eventually taken by C to fill the full tank?
25. Two Pipes A and B can fill a tank in 24 minutes and 32 minutes respectively. If both the taps are opened together, after what amount of time should B be closed so that the tank be full in 18 minute?

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