Comprehension and Problem SolvingPipes and Cisterns (BankPO (IBPS) QuantitativeAptitude): Questions 1  4 of 4
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Question number: 1
» Comprehension and Problem Solving » Pipes and Cisterns
Question
Three pipes x, y and z are opened simultaneously. X fill a cistern in 20 minutes, y in 30 minutes, while z empties the cistern in 40 minutes. How soon will the tank be filled?
Choices
Choice (4)  Response  

a.  20 minutes 

b. 


c. 


d. 


Question number: 2
» Comprehension and Problem Solving » Pipes and Cisterns
Question
Two pipes A and B can fill a tank in 16 min and 20 min respectively. If both the pipes are opened together after how much time, B should be closed so that the tank is full in 10 minutes.
Choices
Choice (4)  Response  

a.  Cannot be determined 

b.  7.5 minutes 

c.  5.7 minutes 

d.  8.7 minutes 

Question number: 3
» Comprehension and Problem Solving » Pipes and Cisterns
Question
A tank has two inlet taps, which will fill it in 15 minutes and 18 minutes respectively. There is one outlet pipe, which empties the tank. When all the three are open, it takes half an hour to fill the tank. How much time will it take to the outlet pipe to empty it?
Choices
Choice (4)  Response  

a.  11.3 minutes 

b.  11.25 minutes 

c.  11 minutes 

d.  11.5 minutes 

Question number: 4
» Comprehension and Problem Solving » Pipes and Cisterns
Question
Pipe X can fill a tank in 20 hours, Y in 25 hours but Pipe Z can empty a full tank in 30 hours. Starting with X, followed by Y and Z, every pipe opens alternatively for one hour period till the tank gets filled up completely. In how many hours the tank will be filled up completely?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

