Dear Readers, Here We are providing a quant Quiz of 15 Pipe and Cistern questions in accordance with the syllabus of SSC CGL. Most of these Questions are Previous Year asked in SSC CGL. It will give you implicit idea of Math Question Paper of SSC CGL 2017
Q1. A, B and C are three taps connected to a tank. A and B together can fill the tank in 6h, B and C together can fill it in 10h and A and C together can fill it in 7 (1/2)h. In how much time all three would take to fill the tank?
(a) 10 h
(b) 12 h
(c) 20 h
(d) 5 h
Q2. A water tank has two pipes. The empty tanks is filled in 12 min by the 1st and the, full tank is emptied by the 2nd in 20 min. The time required to fill the 1/2 full tank when both pipes are in action, is
(a) 16 min
(b) 15 min
(c) 20 min
(d) 30 min
Q3. A tap can fill a cistern in 40 min and a second tap can empty the filled cistern in 60 min. By mistake without closing the second tap, the first tap was opened. In how many minutes will the empty cistern be filled?
(a) 72
(b) 84
(c) 108
(d) 120
Q4. A tap can fill a cistern in 8 h and another tap can empty it in 16 h. If both the taps are open, the time (in hours) taken to fill the tank will be
(a) 8
(b) 10
(c) 16
(d) 24
Q5. A pipe can fill a tank with water in 3h. Due to leakage in bottom, it takes 3 1/2h to fill it. In what time the leak will empty the fully tank?
(a) 12 h
(b) 21 h
(c) 6 (1/2) h
(d) 10( 1/2) h
Q6. A cistern can be filled with water by a pipe in 5 h and it can be emptied by a second pipe in 4 h. If both the pipes are opened when the cistern is full, the time in which it will be emptied is
(a) 9 h
(b) 18 h
(c) 20 h
(d) 20 (1/2)h
Q7. A tank can be filled by two pipes in 20 min and 30 min, respectively. When the tank was empty the two pipes were opened. After some time, the first pipe was stopped and the tank was filled in 18 min. After how much time of the start was the first pipe stopped?
(a) 5 min
(b) 8 min
(c) 10 min
(d) 12 min
Q8. Three pipes A, B and C can fill a cistern in 6 h. After working at it together for 2h, C is closed and A and B fill it in 7 h more. The time taken by C alone to fill the cistern is
(a) 14 h
(b) 15 h
(c) 16 h
(d) 17 h
Q9. A tank can be filled with water by two pipes A and B was together in 36 min. If the pipe B stopped after 30 min, the tank is filled in 40 min. The pipe B can alone fill the tank in
(a) 45 min
(b) 60 min
(c) 75 min
(d) 90 min
Q10. 12 pumps working 6 h a day can empty a completely filled reservoir in 15 days. How many such pumps working 9 h a day will empty the same reservoir in 12 days?
(a) 15
(b) 9
(c) 10
(d) 2
Q11. A cistern has two pipes. One can fill it with water in 8 h and other can empty it in 5 h. In how many hours will the cistern be emptied if both the pipes are opened together when 3/4 of the cistern is already full of water?
(a) 13 1/3 h
(b) 10 h
(c) 6 h
(d) 3 1/3 h
Q12. 3/4 part of tank is full of water. When 30 L of water is taken out, the tank becomes empty. The capacity of the tank is
(a) 36 L
(b) 42 L
(c) 40 L
(d) 38 L
Q13. One pipe fills a water tank three times faster than another pipe. If the two pipes together can fill the empty tank in 36 min, then how much time will the slower pipe alone take to fill the tank?
(a) 1 h 21 min
(b) 1 h 48 min
(c) 2 h
(d) 2 h 24 min
Q14. Two pipes A and B can fill a cistern in 37 (1/2) min and 45 min, respectively. Both pipes are opened. The cistern will be filled just in half an hour, if the pipe B is turned off after
(a) 15 min
(b) 10 min
(c) 5 min
(d) 9 min
Q15. A tap can empty a tank in 1 h. A second tap can empty it in 30 min. If both the taps operate simultaneously, how much time is needed to empty the tank?
(a) 20 min
(b) 30 min
(c) 40 min
(d) 45 min
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