New Workshop on Job Profile of RBI Grade B Officer by Susheel Ragade sir

Question

Tap P can fill the tank in 5 hours and Tap Q can empty it in 7(1/2) hours. Tap P starts filling and they opened for 1 hour each alternatively. In what time will the tank be full?

Q: Tap P can fill the tank in 5 hours and Tap Q can empty it in 7(1/2) hours. Tap P starts filling and

2 Hours = 1 work done Last work will be done by P Therefore, 15 -3 = 12

A 12*1/2 hours

B 30 hours

C 25 hours

D 22 hours

E 15 hours

Download PDF Practice Next

More Pipes and cisterns Questions

Pipe ‘A’ and pipe ‘B’, together can fill 20% of a tank in 7 hours while pipe ‘C’ takes 40 hours to empty it. Pipe ‘A’ and pipe ‘B’ were opened together. After 33 hours, pipe ‘C’ is also opened. Find the total time taken to fill the empty tank this way.
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 pipe M is opened for 5 hours, then pipe P is opened for 2 hours and rest of the tank is filled by pipe N. In what time will the tank be filled completely?
Pipe ‘A’ can fill a tank in 40 hours whereas leak ‘A’ can empty it in 50 hours. If they both operate along with pipe ‘B’, then the given tank gets filled in 20 hours. How much time is needed to fill the given tank if pipe ‘B’ and leak ‘A’ work together?
Tap A can fill a tank in 20 hours and tap B can emptied it is 25 hours. Tap A starts filling and they opened for 1 hour each alternatively in what time will the tank be full?
Tap P can fill the tank in 5 hours and Tap Q can empty it in `7(1/2)` hours. Tap P starts filling and they opened for 1 hour each alternatively. In what time will the tank be full?
A cistern has two pipes one can fill it with water in 24 hours and other can empty it in 9 hours. In how many hours will the cistern be emptied if both the pipes are opened together when (5 )/8th of the cistern is already filled with water?
Pipe A can fill half of the tank in 6 hrs 2 min- Pipe B can fill the same tank completely in 18 hrs 5 min while pipe C can empty the fully filled tank in 9 hrs, If all pipes are opened simultaneously then in how much time 80% of tank will be filled? (approximately)
Pipe ‘A’ takes 30 minutes to fill a tank. Pipe ‘B’ takes 40 minutes to empty the same tank. If pipe ‘B’ is opened 20 minutes after pipe ‘A’, then find the total time taken to fill the tank in this manner.
Pipe ‘A’ takes 10 minutes to fill a tank. Pipe ‘B’ takes 20 minutes to empty the same tank. If pipe ‘B’ is opened 4 minutes after pipe ‘A’, then find the total time taken to fill the tank in this manner.
Pipe ‘A’ can fill a tank in 25 hours while pipe ‘B’ can empty it in 30 hours. They were operated on alternate hours starting with pipe ‘A’. Find the percentage of tank filled this way in 60 hours.

Question

Tap P can fill the tank in 5 hours and Tap Q can empty it in 7(1/2) hours. Tap P starts filling and they opened for 1 hour each alternatively. In what time will the tank be full?

Solution

I Pledged to: