A tap can fill a tank in 6 hours. After half the tank is filled then 3 more similar taps are opened. What will be total time taken to fill the tank completely

A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank ?

A group of men decided to do a work in 10 days but 5 of them remained absent. If the rest of the group finished the work in 12 days; find the original number of men?

 A can build up structure in 8 days and B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days. In how many days will A alone build up the remaining part of the structure ?

A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:

A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely ?

A can do a piece of work in 8 days which B can destroy in 3 days. A has worked for 6 days, during the last 2 days of which B has been destroying. How many days must A now work alone to complete the work?

10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?

B is 20% efficient than A. B started the work & do it for x days. And then B is replaced by A. And A completed the remaining work in x+8 days. Ratio of work done by A & B is 3:2. In how many day A & B working together to complete the whole work?

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in:

A and B can do a piece of work in 24 and 30 days respectively. Both started the work and worked for 6 days. Then B leaves the work and C joins and the remaining work is completed by A and C together in 11 days. Find the days in which C alone can do the work

Pipes A and B can fill a cistern in 15 hours together. But if these pipes operate separately A takes 40 hours less than B to fill the tank. In how many hours the pipe A will fill the cistern working alone?

B is 200% efficient than A and 50% efficient than C, If all of them work together for 2 days to complete the work, then in how many days A alone can complete the work?

A and B together can do a piece of work in 12 days, while B alone can finish it in 30 days. A alone can finish the work in :

14 men can do a work in 18 days, 15 women can do a work in 24 days. If 14 men work for first three days and 10 women work after that for three days, find the part of work left after that ?

9 children can complete a piece of work in 360 days. 18 men can complete the same piece of work in 72 days and 12 women can complete the piece of work in 162 days. In how many days can 4 men,12 women and 10 children together complete the piece of work?

If 8 men and 5 women can earn Rs. 3390 in 6 days-and 5 men and 7 women can earn Rs. 3600 in 8 days, then in how many days will 7 men and 8 women earn 6435 ?

work done by A in one day is half of the work done by B in one day.work done by B is half of the work done by C in one day.if C alone can complete the work in 7days,in how many days can A,B and C together complete the work?

38 men, working 6 hours a day can do a piece of work in 12 days. Find the number of days in which 57 men working 8 hrs. a day can do twice the work. Assume that 2 men of the first group do as much work in 1 hour as 3 men of the second group do in 3/2 hr. 

A and B can do a job together in 12 days. A is 2 times as efficient as B. In how many days can B alone complete the work ? 

A tank is 2/5th empty. When 16 liters of water is added it become 4/5 full,what is the capacity of the tank? (in liters)

Two pipes X and Y can fill a tank in 6  hours and 9 hours respectively. If they are turned on alternately for one hour each starting with X, then what is the time taken to fill the tank?

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank ? 

A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:

A tank is fitted with two inlet pipes A and B and an outlet pipe C. Pipe A can fill the empty tank in 12 minutes. While pipe B alone can fill it in 18 minutes. Pipe C can empty the full tank in 45/4 minutes. If all three pipes are opened simultaneously, in what time will the empty tank be filled?

A is twice as efficient as B. B started the work and after 4 days A Joins B and thetotal work was completed in 9 days. In how many days B can complete the work alone?

A, B and C can complete a piece of work in 10, 12 and 15 days respectively. A left the work 5 days before the work was completed and B left 2 days after A had left. Number of days required to complete the whole work was:

There are three taps A,B, and C. A takes thrice as much time as B and C together to fill the tank . B takes twice as much time as A and C to fill the tank. In how much time can the Tap C fill the tank individually, if they would require 10 hours to fill the tank, When opened simultaneously ?

Three taps P,Q and R can individually fill a cistern in 7, 14 and 21 hours respectively .Tap P is opened  first for 1 hour and then Tap P is closed and Tap Q is opened for 1hour, tap Q is then closed and Tap R is then opened for 1 hour  after which Tap R is closed and Tap P opened again. This Process is continued till the tank is full. In how much time will the tank be completely full ?

Two pipe p1 and p2 can fill a tank in 40 minutes and 60 minutes respectively, both the taps are opened and after 10 minutes P1 was shut. In how much more time would the tank would be fill ?

Two pipes A & B can fill a tank in 36 hours and 45 hours respectively. If both the pipes are open simultaneously. How much times will be taken to fill the tank?

Two pipes P and Q can fill a cistern in 12 minutes and 16 minutes respectively.  Simultaneously both the pipes are opened together, then after how much time Q should be closed so that the tank is full in 9 min ?

A can do a piece of work in 8 days and B can do it in 5 days. They work together for 2 days and then A leaves the work. How long will now B take to finish it?

8 men can complete a piece of work in 12 days. 4 women can complete the same piece of work in 48 days and 10 children can complete that piece of work inn 24 days. In how many days can 10 men, 4 women and 10 children together complete the work?

A and B can complete a piece of work in 80 days and 120 days respectively. They started working together but A left after 20 days. After another 12 days C joined B and they completed the work in 28 more days. In how many days can C alone complete the work?

A water reservoir has two inlets and one outlet. Through the inlet it can be filled in 3 hours and 3 hours 45 minutes respectively. It can be emptied completely in 1 hour by the outlet. If the two inlets are opened at 01:00 pm and 02:00 pm respectively and the outlet at 03:00 pm then it will be emptied at.

A tap can empty a tank in one hour. A second tap can empty it in 30 min. If both the taps operate simultaneously, how much time is needed to empty the tank?

Work done by A in one day is four times the work done by B in one day, while the work done by B in one day is one-third of the work done by C in one day. C alone can complete the work in 16 days. In how many days can all the three together complete the work?

A certain number of men can finish a piece of work in 100 days. If however there were l0 men less, it would take another 10 days to finish the work. How many men were there originally?

Satshivam can finish a work in 18 days. Altmash takes 2.5 times more time than Balasubramanyam and Balasubramanyam takes half as many days as Satshivam to finish the work alone. In how many days all of them will complete work together?

A is 2.5 times as good workman as B and A is able to finish the work in 50 days less than B. Find the time in which they can do it working together

16 men can complete a piece of work in 8 days. In how many days can 12 men complete the same piece of work?

A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?

A alone can do a piece of work in 6 days and B alone 8 days. A and B undertook to do it for Rs.3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?

A can lay railway track between two given stations in 16 days and B can do the same job in 12 days, with help of C, they did the job in 4 days only. Then, C alone can do the job in:

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:

Two pipes A and B can separately fill a cistern in 60 minutes and 75 minutes respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 minutes. In how much time, the third pipe alone can empty the cistern?

3 men can complete a piece of work in 6 days. 5 women can complete the same work in 18 days. In how many days will 4 men and 10 women together complete the same work?

A cistern is filled in 9 hours and it takes 10 hours when there is a leak in its bottom. If the cistern is full, in what time shall the leak empty it?

26 men can complete a piece of work in 17 days. How many more men must be hired to complete the work in 13 days?

Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in:

A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?

A is twice as good a workman as B. Together, they finish the work in 14 days. In how many days can it be done by each of them separately?