Pipes and Cisterns Set 4
We are here with Set of questions related to pipes and cisterns which are important for aptitude section of SBI PO, SBI Clerk ,SSC CGL or other competitive exams.
Q1. A cistern can be filled with water by pipe A in 5 hours and it can be emptied by a second pipe B in 4 hours. If both the pipes are opened when the cistern is full, the time in which it will be emptied is:
Q2. A booster pump can be used for filling as well as for emptying a tank. The capacity of the tank is 2400 m³. The emptying capacity of the tank is 10 m³ per minute higher than its filling capacity and the pump needs 8 minutes lesser to empty the tank than it needs to fill it. What is the filling capacity of the pump (in m^3 per minute)?
Q3. 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 (in gallons):
Q4. Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How many time will be taken by A to fill the cistern separately?
(a) 4 hours
(b) 2 hours
(c) 6 hours
(d) 8 hours
(e) 10 hours
Q5. Three pipes A, B and C can fill together a tank in 6 hours. After working together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The number of hours taken by C alone to fill the tank is:
(a) 20 hours
(b) 22 hours
(c) 24 hours
(d) 16 hours
(e) 18 hours
1 – B 2 – C 3 – D 4 – C 5 – C