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Question 1
Three taps A, B; C can fill an overhead tank in 4, 6 and 12 hours respectively. How long would the three taps take to fill the tank if all of them are opened together?
Question 2
Two pipes A and B can fill the tank of 900 litres capacity in 25 mins and 30 mins respectively. Pipe C empty the tank in x minutes. All the three pipes opened together can fill the tank in 15 min. Find amount of water empty by pipe C in per minute.
Question 3
A cistern is provided with two pipes A and B. A can fill it in 30 minutes and B can empty it in 40 minutes. If A and B be kept open alternately for one minute each and A opened first, in how much time will the cistern be filled?
Question 4
Three pipes A, B and C together can fill a tank in 6 hours. After working together for 2 hours, C is closed and A and B fill the remaining part of the tank in 8 hours. In how much time (in hours) tank can be completely filled by pipe C alone?
Question 5
A and B pipes can fill a tank in 6 and 10 minutes respectively.Both pipes are opened together but due to some fault Pipe A can work only with of its efficiency and Pipe B can work only with of its efficiency.Then how much time they will take to fill the tank ?
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Dec 31PO, Clerk, SO, Insurance