Pipes and Cisterns — MCQ Practice
Interactive MCQ Practice
Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 5 questions available.
Two pipes A and B can fill a cistern in 15 hours and 20 hours respectively. A third pipe C can empty the full cistern in 25 hours. If all three pipes are opened together, in how much time will the cistern be filled?
A pipe can fill a cistern in 6 hours. Due to a leak in the bottom, it takes 9 hours to fill the cistern. If the cistern is full, how long will it take for the leak alone to empty it?
Three pipes A, B, and C have efficiencies in the ratio 2:3:6. Together they can fill a cistern in 11 hours. How long will pipe C alone take to fill the cistern?
Two pipes can fill a cistern in 12 minutes and 16 minutes respectively. A third pipe can empty the cistern in 24 minutes. If the first two pipes are opened for 4 minutes and then all three pipes are opened, how much additional time is needed to fill the cistern?
A cistern has two inlet pipes and one outlet pipe. The first inlet pipe alone can fill the cistern in 8 hours, the second inlet pipe alone can fill it in 12 hours, and the outlet pipe alone can empty it in 6 hours. If all pipes are opened simultaneously when the cistern is empty, what will happen?