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Two pipes can separately fill a tank in 10 hours and 15 hours, respectively. Both the pipes are opened to fill the tank but when the tank is 14 full a leak develops in which 13 of water supplied by both the pipes leak out. The total time taken to fill the tank is

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Important Questions on Pipes and Cistern

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Quantitative Aptitude for Competitive Examinations>Chapter 17 - Pipes and Cistern>Practice Problems Level 2>Q 16
A, B and C are pipes attached to a cistern. A and B can fill it in 20 and 30 minutes, respectively, which C can empty it in 15 minutes. If A, Band C be kept open successively for 1 minute each, how soon will the cistern be filled?
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Quantitative Aptitude for Competitive Examinations>Chapter 17 - Pipes and Cistern>Practice Problems Level 2>Q 17
A booster pump can be used for filling as well as for emptying a tank. The capacity of the tank is 3,600 m3. The emptying capacity of the tank is 10 m3 per minute higher than its filling capacity and the pump needs 12 minutes lesser to empty the tank than it needs to fill it. The filling capacity of the pump is
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Quantitative Aptitude for Competitive Examinations>Chapter 17 - Pipes and Cistern>Practice Problems Level 2>Q 18
Mahesh has installed two pipes which can fill his overhead tank in 36 minutes and 45 minutes, respectively. He also planned for an outlet pipe which can empty the tank in 30 minutes. While doing the first test run, he opened the first two pipes. After 7 minutes, he opened the third pipe. In how much time
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Quantitative Aptitude for Competitive Examinations>Chapter 17 - Pipes and Cistern>Practice Problems Level 2>Q 19
A tank has a leak which would empty it in 4 hours. A tap is turned on which admits 3 L per minute into the tank and it is now emptied in 8 hours. How many litres does the tank hold?
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Quantitative Aptitude for Competitive Examinations>Chapter 17 - Pipes and Cistern>Practice Problems Level 2>Q 20
Pipe X can fill a tank in 20 hours and pipe Y can fill the tank in 35 hours. Both the pipes are opened on alternate hours. Pipe Y is opened first, then in how much hours the tank will be full?
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Quantitative Aptitude for Competitive Examinations>Chapter 17 - Pipes and Cistern>Practice Problems Level 2>Q 21
There are 4 filling pipes and 3 emptying pipes capable of filling and emptying in 12 minutes and 15 minutes respectively. If all the pipes are opened together and as a result, they fill 10 litres of water per minute, find the capacity of the tank.