## Problems on Pipes and Cisterns

Learn and practice Problems on pipes and cisterns with easy explaination and shortcut tricks. All questions and answers on pipes and cisterns covered for various Competitive Exams

## Solve Problems:

1) A pipe can fill a tank in 6 hours and another pipe can empty the tank in 12 hours. If both the pipes are opened at the same time, the tank can be filled in

1. 10 hours
2. 12 hours
3. 14 hours
4. 16 hours

2) Three pipes A, B and C can fill a cistern in 8 minutes,12 minutes and 16 minutes respectively. What is the time taken by three pipes to fill the cistern when they are opened together?

1. 3.7 minutes
2. 4 minutes
3. 4.5 minutes
4. 5 minutes

3) Two pipes can fill a tank in 6 hours and 8 hours respectively. A third pipe can empty the same tank in 12 hours. If all the pipes start working together, how long it will take to fill the tank?

1. 4 hours
2. 4.5 hours
3. 4.8 hours
4. 5.2 hours

4) A tank can be filled in 10 hours. After a leak in its bottom, it takes 12 hours to fill the tank. Find the time taken by the leak to empty the full tank?

1. 45 hours
2. 60 hours
3. 50 hours
4. 55 hours

5) Two pipes can fill a tank in 10 and 14 minutes respectively. A third pipe can empty the tank at the rate of10 liters/minute. If all the pipes working together can fill the empty tank in 8 minutes,what is the capacity of the tank?

1. 210 liters
2. 215.4 liters
3. 220 liters
4. 225.4 liters

6) A cistern can be filled by an inlet in 6 hours and can be emptied by an outlet in 8 hours. If the inlet and outlet are opened together, in what time the cistern can be filled?

1. 24 hours
2. 26 hours
3. 20 hours
4. 18 hours

7) 20 buckets can fill a tank when the capacity of each bucket is 12 liters. If the capacity of each bucket is 10 liters, find the number of buckets required to fill the tank.

1. 30 buckets
2. 34 buckets
3. 24 buckets
4. 27 buckets

8) Two pipes working together can fill a fish tank in 12 minutes. If one pipe fills the fish tank 10 minutes faster than the second pipe, in what time the second pipe alone can fill the fish tank?

1. 20 minutes
2. 25 minutes
3. 30 minutes
4. 35 minutes

9) 25 outlets working 6 hours a day, can empty a reservoir in 10 days. If only 15 outlets are operational and work for 4 hours a day, in how many days the reservoir can be emptied?

1. 20 days
2. 18 days
3. 22 days
4. 25 days

10) Pipe A can fill a tank in 12 minutes whereas pipe A along with pipe B can fill the same tank in 8 minutes. In what time pipe B alone can fill the tank?

1. 24 minutes
2. 20 minutes
3. 25 minutes
4. 22 minutes