EASY
IBPS RRB Office Assistant Mains
IMPORTANT
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A cistern is filled by two taps A and B, in 4 hours and 6 hours respectively, and is emptied by a waste pipe C in 3 hours. When the cistern is half full, A  and B are closed and C is opened; after an hour, B is turned on; after half an hour more, A is turned on. In what time after C is first opened, does the cistern become full?

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Important Questions on Time and Work, Pipe and Cistern

EASY
IBPS RRB Office Assistant Mains
IMPORTANT
IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 2 - Time and Work, Pipe and Cistern>OBJECTIVE TYPE QUESTIONS>Q 69
A leaky cistern is filled in 5 hours, with 30 pails of 12 litres each, but in 3 hours with 20 pails of 16 litres each, the pails being poured in at intervals. Find how much the cistern holds.
EASY
IBPS RRB Office Assistant Mains
IMPORTANT
IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 2 - Time and Work, Pipe and Cistern>OBJECTIVE TYPE QUESTIONS>Q 70
A and B worked on a job together for 4 hrs. and finished half of it. A worked thrice as fast as B did, If B then left A and was joined by C and they finished the job in 1 hour, how long it would have taken for C to do the whole job alone?
EASY
IBPS RRB Office Assistant Mains
IMPORTANT
IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 2 - Time and Work, Pipe and Cistern>OBJECTIVE TYPE QUESTIONS>Q 71
Pipes A and B can fill the cistern in 20 and 30 min and C can empty it in 15 min. If the three are kept open successively for 1 min each in that order how soon will the cistern be filled?
EASY
IBPS RRB Office Assistant Mains
IMPORTANT
IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 2 - Time and Work, Pipe and Cistern>OBJECTIVE TYPE QUESTIONS>Q 72
A bath can be filled by a cold water pipe in 10 min and by the hot water pipe in 15 min. A person leaves the bathroom after turning on both, and he returns when the bath should be full. Finding, however, the waste pipe has been open, he closes it. In 4 min more the bath is full. At what time will the wastewater empty it?
MEDIUM
IBPS RRB Office Assistant Mains
IMPORTANT
IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 2 - Time and Work, Pipe and Cistern>OBJECTIVE TYPE QUESTIONS>Q 73
A and B can fill a cistern in 7.5 min and 5 min and C can carry of 14 litres per minute. If all pipes are open when it is full, it is emptied in 1 hrs. How many litres can it hold?
MEDIUM
IBPS RRB Office Assistant Mains
IMPORTANT
IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 2 - Time and Work, Pipe and Cistern>OBJECTIVE TYPE QUESTIONS>Q 74
A tank of volume 432 cubic ft. has one inlet tap and two outlet taps. The inlet tap fills water into the tank @ 4 cubic inch/min. and the outlet two taps empty it out @ 14 cubic inch/min and 6 cubic inch/min. respectively. If all the three taps are opened when the tank is full, in how much time will it be empty?