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A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:

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Important Questions on Pipe and Cistern

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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 6
Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is:
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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 7
A tank is filled in 5 hours by three pipes A,B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank?
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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 8
Two pipes A and B together can fill a cistern in 4 hours. Has they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?
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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 9
Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?
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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 10
Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?
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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 11
One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in:
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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 12
A large tanker can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?
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Quantitative Aptitude Self Study Material>Chapter 15 - Pipe and Cistern>Pipe and Cistern>Q 13
A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?