Question
span >A pipe can fill a tank in 14 hours, and B pipe can drain a tank in 21 hours. If a system of N pipes (fill pipes and drain pipes put together) can fill the tank in exactly 7 hours, which of the following are possible values of N (More than one option could be correct)? (1) 21 (2) 13 (3) 18 (4) 24 (5) None of these
span >A pipe can fill a tank in 14 hours, and B pipe can drain a tank in 21 hours. If a system of N pipes (fill pipes and drain pipes put together) can fill the tank in exactly 7 hours, which of the following are possible values of N (More than one option could be correct)? (1) 21 (2) 13 (3) 18 (4) 24 (5) None of these
More Time and work Questions
- Amit can do certain work alone in 'w' days. Arjit can do the same work alone in (w + 12) days.Gaurav started working and did (1/2) the work at the efficien...
- A is thrice as good a workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
- Three workers P1, P2 and P3 got work from the contractor. In 30 days, ‘P1’ completed 30% of work. ‘P2’ is 20% less efficient than ‘P1’ but takes 5 days les...
- A and B together can do a piece of work in (p-8.8) days.The efficiency of D is 10% less than the efficiency of B. A and C together can do the same piece of...
- P is 60% more efficient than Q. P takes 30 more days to finish a work as compared to the number of days taken by P and Q together to finish the same work. ...
- ‘R’ and ‘S’ together can finish a work in 25 days. If ‘R’ increases his efficiency by 60% and ‘S’ decreases his efficiency by 20%, then the time taken rema...
- ‘X’ can complete a job in 30 days. ‘Y’ is 50% more efficient than ‘X’. How long will they take to finish 75% of the work together?
- ‘A’ alone can do some work in 12 days. ‘B’ and ‘C’ together can do the same work in 6 days. If ‘B’ is half as efficient as ‘A’, then find the time taken by...
- A, B, and C can individually complete a task in 20 days, 15 days, and 10 days, respectively. B and C begin the task and work together for 3 days, after whi...
- "A" can complete a task in 15 days, while it takes 25 days for "B" to complete the same task. The ratio of the efficiencies of "A" and "C" is 2:1. If a tas...
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)