Quant Booster Dose – Pipe and Cistern Questions PDF
Pipe and Cistern Question PDF with Answers for government exams like SSC, Railways, Banking, FCI, CWC, Insurance Exams, UPSC, and other state PCS exams. As we all know in many competitive exams in Quantitative Aptitude/ Numerical Ability subject Pipe and Cistern Questions asked repeatedly, so you cannot ignore the Pipe and Cistern Questions PDF.
As questions are based on previous year papers, there are chances that candidates will find many questions from the Pipe and Cistern Questions with Answers PDF in all competitive Exams. If you check the last 4-5 year’s papers of SSC, Railways and Banking Exams, you will find that many different types of Pipe and Cistern questions are asked. Today we have compiled “100+ Pipe and Cistern Questions PDF with Answers for SSC, Railway & Banking Exam”. You can download Free Pipe and Cistern Questions with Solution so that you get all the important questions at one place. And it will become very easy for you guys to revise them.
Pipe and Cistern Questions PDF for SSC, Railways and Banking Exams
The ultimate way to begin Numerical Ability Preparation is to have the best Quantitative Aptitude practice questions in your PDF Drive. To ease out your preparation and save you a lot of time, At Let’s Study Together (LST) we understand our student’s requirements and keeping it in mind, So LST Team has compiled the Pipe and Cistern Questions PDF for SSC, Railways and Banking Exams with Detailed Answers’. Get some relevant as well as reliable study material that will guide you well throughout your exam preparation. You can download the Pipe and Cistern Questions with Solution so that you get all the important questions at one place. And it will become very easy for you guys to revise them.
Pipe and Cistern Questions with Answers | Download Free PDF
What is Pipe and Cistern?
Pipes and cistern is another format of time and work-based questions. Questions like the time taken to fill or empty a tank, the amount of work done for the same and similar type of questions may be asked. There are two major things which a candidate needs to know about such questions:
- Inlet: An inlet is a pipe which is connected to fill a tank with water. This is the positive type of work done
- Outlet: An outlet is a pipe which is connected to empty the tank of water. This indicates a negative type of work done. It may also be referred to as ‘leak’ in the question
Important Pipe and Cistern Formula
Given below are a few important formulas which shall help you solve the pipes and cistern based questions quicker and more efficiently:
- if you need x hours to fill up a tank then part filled in 1 hr =1/x
- if y hours are required to empty the tank then part emptied in 1 hour = 1/y
- if one pipe can fill the tank in x hours and another can empty it in y hours (assuming y is greater than x), then the net part of the tank filled in 1 hour is equal to {(xy) / (y-x)}.
- If one pipe can fill the tank in x hours and another can empty it in y hours (assuming x is greater than y), then the net part of the tank filled in 1 hour is equal to {(xy) / (x-y)}.
- Net Work Done = (Total Sum of Work Done by Inlets) – (Total Sum of Work Done by Outlets)
- if you have two inlets that can fill a certain tank, one taking x hours and the other taking y hours respectively, the total time taken to fill the tank is calculated with the formula {(xy) / (y+x)}
Fundamental Pipes and Cistern Concept
- The problems of pipes and cisterns usually have two kinds of pipes, Inlet pipe, and Outlet pipe / Leak. The inlet pipe is the pipe that fills the tank/reservoir/cistern and the Outlet pipe / Leak is the one that empties it.
- If a pipe can fill a tank in ‘n’ hours, then in 1 hour, it will fill ‘1 / n’ parts. For example, if a pipe takes 6 hours to fill a tank completely, say 12 liters, then in 1 hour, it will fill 1 / 6 th of the tank, i.e., 2 liters.
- If a pipe can empty a tank in ‘n’ hours, then in 1 hour, it will empty ‘1 / n’ parts. For example, if a pipe takes 6 hours to empty a tank completely, say 18 liters, then in 1 hour, it will empty 1 / 6 th of the tank, i.e., 3 liters.
- If we have several pipes such that some fill the tank and some empty it, and we open all of them together, then in one hour, part of the tank filled/emptied = ∑ (1 / mi) – ∑ (1 / nj), where ‘mi’ is the time taken by inlet pipe ‘i’ to fill the tank completely if only it were open and ‘nj’ is the time taken by outlet pipe ‘j’ to empty the tank completely if only it were open. If the sign of this equation is positive, the tank would be filled and if the sign is negative, the tank would be emptied.
Tips and Tricks to solve Pipe and Cistern Questions
Tip # 1: If a pipe can fill a tank in x hours and another pipe can fill it in y hours, then the fraction of tank filled by both pipes together in 1 hour = 1 / x + 1 / y = x + y / xy
Tip # 2:If a pipe can fill a tank in x hours and another pipe can empty it in y hours, then the fraction of tank filled by both the pipes together in 1 hour = 1 / x – 1 / y = y – x / xy
Pipe and Cistern Practice Questions with Answers
1. If two pipes can fill a tank in 24 and 20 minutes respectively and another pipe can empty 3 gallons of water per minute from that tank. When all the three pipes are working together, it takes 15 minutes to fill the tank. What is the capacity of the tank?
(a) 100 gallons
(b) 150 gallons
(c) 125 gallons
(d) 120 gallons
(e) None of these
2 . It takes 20 minutes for pipe A to fill the tank completely and it takes 30 minutes for pipe B to fill the tank completely. If both the inlets are opened together, then how much time will be taken to fill the tank completely?
(a) 10 minutes
(b) 11 minutes
(c) 12 minutes
(d) 15 minutes
(e) None of these
3. Pipe A can fill the tank 3 times faster in comparison to pipe B. It takes 36 minutes for pipe A and B to fill the tank together. How much time will pipe B alone take to fill the tank?
(a) 154 minutes
(b) 144 minutes
(c) 134 minutes
(d) 124 minutes
(e) None of these
4. In order to fill an empty pond with water, two pipes A and B are engaged. Pipe A alone can fill the pond in 70 hours and pipe B alone can fill it in 80 hours. If both the pipes A and B are opened simultaneously, how much time will be required to fill the pond?
(a) 27.30 hours
(b) 25.85 hours
(c) 37.33 hours
(d) 32.45 hours
(e) None of these
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5. Three pipes A, B, and C can fill a tank in 10 hours, 12 hours, and 15 hours, respectively. However, there is a leakage at the bottom of the tank, which can drain out the water in 20 hours when no pipes are open. If all the pipes are opened together, and the leakage starts after 3 hours, how much time will the tank be filled?
(a) 3 hours and 15 minutes
(b) 4 hours and 25 minutes
(c) 4 hours and 15 minutes
(d) 4 hours and 05 minutes
(e) None of these
6. Fill pipe P is 21 times faster than fill pipe Q. If Q can fill a cistern in 110 minutes, find the time it takes to fill the cistern when both fill pipes are open.
(a) 5 minutes
(b) 4 minutes
(c) 3 minutes
(d) 6 minutes
(e) None of these
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7. Pipe A can fill the empty tank in 4 hours, Pipe B can fill the same tank alone in 8 hours. Pipe C is an outlet pipe that can empty the whole tank in x hours . If all the three pipes can fill the tank in 3 (3/7) hours. If the efficiency of pipe C is reduced by 50% then find the time taken by pipe A, B and C to fill the whole empty tank.
(a) 6 hours
(b) 3 hours
(c) 4 hours
(d) 5 hours
(e) None of these
8. Pipe A can fill the tank in 8 minutes, Pipe B can fill the tank in 16 minutes. Pipe C is an emptying pipe whose efficiency is 33.33% more than the efficiency of pipe B. If all pipes A, B and C opened for 6 minutes and C alone opened and the other two pipes were closed for 3 minutes. Now all the pipes A, B and C fill the whole tank in x minutes. Find the value of x.
(a) 5 minutes
(b) 6 minutes
(c) 4 minutes
(d) 8 minutes
(e) None of these
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9. A cistern has two pipes one can fill it with water in 16 hours and other can empty it in 10 hours. In how many hours will the cistern be emptied if both the pipes are opened together when 1/5th of the cistern is already filled with water?
(a) 11.4 hours
(b) 3.66 hours
(c) 5.33 hours
(d) 8.33 hours
(e) None of these
10. Two pipes, when working one at a time, can fill a cistern in 3 hours and 4 hours, respectively while a third pipe can drain the cistern empty in 8 hours. All the three pipes were opened together when the cistern was 1/12 full. How long did it take for the cistern to be completely full?
(a) 2 hours
(b) 1 hour 45 minutes
(c) 2 hour 11 minutes
(d) 2 hour 10 minutes
(e) None of these
All the Pipe and Cistern questions are formulated as per the level of Bank PO exams. The Pipe and Cistern questions in this PDF has a moderate and hard level of difficulty. All the candidates who are preparing for banking exams are advised to practice all these important questions to score well in the exam. To remove any doubt or difficulty in any topic, go through the study notes of each topic from the links given above.
Why Quantitative Aptitude Pipe and Cistern Questions PDF is Important for Exams?
- All the questions prepare by Exams experts.
- The practice questions covered are across the levels i.e. Easy, Moderate, and Difficult.
- Provides a detailed approach to the solution of each question.
- Focuses on all the new patterns and advanced-level type questions.
- Pipe and Cistern Questions PDF boosts confidence and reduces pre-exam jitters by regularly attempting a variety of questions and tackling the difficulty level expected in the final exam.
This Quant Booster Dose Pipe and Cistern Questions PDF is useful for the upcoming Banking and Insurance exams i.e. IBPS PO, SBI PO, Clerk, IBPS RRB PO & Clerk, RBI Assistant, RBI Grade B, NABARD, LIC AAO, SSC (CGL, CHSL, MTS, CPO, and Constable), Railway RRB (NTPC, Group D, JE, ALP) & Other Government Exams.
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Here we are providing you with New Pattern Quantitative Aptitude Quizzes (Pipe and Cistern Questions) for SSC, Railway & Banking Exam, based on the latest pattern of your daily practice.
| Practice Set- 1 | Practice Set- 2 | Practice Set- 3 |
| Practice Set- 4 | Practice Set- 5 | Practice Set- 6 |
| Practice Set- 7 | Practice Set- 8 | Practice Set- 9 |
| Practice Set- 10 | More…… | Complete Quant Study Material |
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8700+ Quantitative Aptitude Topic wise Questions and Answers – Download Free PDF
