Question
An inlet can fill an empty tank in 7 hours whereas an outlet pipe can empty it in 14 hours. If (N - 1) such outlet pipes having same efficiency and (N + 2) such inlet pipes having same efficiency are opened together, then the tank gets filled in 2 hours. How many inlet pipes are used?
Required number of inlet pipes used = N+2 = 2+2 = 4More Pipes and cisterns Questions
- Pipe A and Pipe B together can fill the tank in 25 hours. The capacity of the pipe A is 20% of the capacity of the pipe B. How much time will pipe B alone ...
- A translator ‘X’ and a translator ‘Y’ can translate a book in 12 hours and 18 hours, respectively. If both translators work together, then how much time do...
- An inlet pipe can fill an empty tank in 40 minutes whereas an outlet pipe can empty the fully filled tank in 80 minutes. Find the time taken by both the pi...
- Two inlet pipes M and N alone can fill a tank in 10 hours and 12 hours respectively and an outlet pipe P alone can empty the whole tank in 8 hours. First p...
- A tank can be filled by pipe M in 20 hours and by pipe N in 30 hours. Pipe O is 50% more efficient than pipe M. Pipes N and O are opened when the tank is e...
- Pipe 'P' and 'Q' can fill a tank in 50 minutes and 1 hour 40 minutes respectively. 'P' is opened alone. After 20 minutes, 'P' is closed and 'Q' is opened. ...
- There are two inlet pipes 'A', 'B' and one outlet pipe 'C' in a tank. ‘A’ and ‘B’ can fill the tank in 24 minutes and 16 minutes respectively. ‘C’ is 50% l...
- Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 30 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 15 hours pipe ‘B...
- A tank can be filled by pipe A in 10 hours and by pipe B in 15 hours. Pipe C can empty the full tank in 12 hours. All three pipes are opened together. Afte...
- Three inlet pipes of equal efficiency can fill a tank in 20 minutes, and two outlet pipes of equal efficiency can empty the tank in 45 minutes. Find the ti...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)