Question
A printing machine ‘P’ and a printing machine ‘Q’ can print a set of documents in 14 hours and 21 hours, respectively. If both machines work together, then how much time do they need to print 80% of the documents?
More Pipes and cisterns Questions
- Pipe A and Pipe B together can fill the tank in 15 hours. The capacity of the pipe A is 20% of the capacity of the pipe B. How much time will pipe B alone ...
- Together, the three intake pipes, "P," "Q," and "R," can fill a water tank in eight hours. While the three pipes are opened simultaneously, pipe "Q" closes...
- Pipe 'A' fills half tank in 14 minutes. Pipe 'B' is 4 times as efficient. What % of the tank will be filled by both in 4 minutes?
- Pipe A can fill the tank in 20 hours. Pipes A and B together can fill it in 10 hours. Pipes B and C together can fill it in 5 hours. In how many hours can ...
- A tank can be filled by pipe A in 12 hours and by pipe B in 18 hours. A waste pipe C can empty the full tank in 36 hours. If all three pipes are opened tog...
- A and B can fill a tank in 14 and 21 hours. Pipe C can empty it in ‘x’ hours. All three open together fill the tank in 7 hours. Find x.
- Pipe A and B can fill a tank in 36 and 45 hours. Pipe C can empty the tank in ‘x’ hours. If all three are opened, the tank is filled in 60 hours. Find x.
- The time taken by pipe B3 alone to fill an empty tank completely is half of the time taken by pipe B1 alone to fill the same tank completely. Pipe B2 alone...
- Pipe A can fill a tank in 24 minutes, Pipe B can fill it in 36 minutes and Pipe C can empty it in 48 minutes. All three pipes are opened together, but Pipe...
- Three pipes A, B, and C can fill a tank in 50 minutes, 60 minutes, and 75 minutes respectively. All are opened together. A is closed after 'n' minutes, and...
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)