Time & Work Test for Bank Exams

Pipe A fill a cistern in 9 hours and pipe B empty the cistern in 12 hours. How much time will be taken to fill the empty cistern, if both the pipes are opened simultaneously?

Narender can do 4/5th of work in 20 days. The efficiency of Ajay is 25% more than that of Narender. Both Narender and Ajay started working together and left the work after five days. Neha completed the remaining work in 11 days. The efficiency of Neha is how much percent more/less than that of Narender?

Pipe A can fill a tank in 6 hours. Due to a leak at the bottom, it takes 9 hours for the pipe A to fill the tank. In what time can the leak alone empty the full tank.

A cistern has two pipes one can fill it with water in 16 hours and other can empty it in 10 hours. In how many hours will the cistern be emptied if both the pipes are opened together when 1/5th of the cistern is already filled with water?

A and B are two inlet pipes connected to a cistern, can alone fill it in 20 hours and 24 hours respectively. There is third pipe C which can empty 160 litres of water in one hour from the cistern. If all three pipes are opened together cistern gets filled in 40 hours. Find the total capacity of the cistern.

A can do a work in 20 days and B can do the same work in 20% less time taken by A. A and B start working together, then find in how much time 80% of the total work will get completed.

A pipe A can fill 3/4th of a cistern in 15 hours and pipe B can fill 2/3rd of the same cistern in 20 hours. If both the pipes open simultaneously then find the time taken by them to fill 80% of the cistern.

A does half of the work in 36 days and B does $\frac{1}{4}\%$ of the same work in 12 days. With the help of C, they together complete the work is completed in 24 days. In how many days C alone can complete the work?

A can do a work in 24 days, B can do the same work in 48 days and C can do the same work in 72 days. Unfortunately, B could not become the part of the work so the work was completed by A and C only, so in this case how much more money is earned by A than the previous situation, if total amount distributed to them in both the cases was 4400 rupees.

A, B and C can complete a work in 12, 20 and 15 days respectively. A and B started the work and worked for 5 days. Find the time taken by C to complete the remaining work.