Search Results - 3336 results found from 53231

## Question : A pipe can fill a tank in 12 minutes and another pipe can fill it in 15 minutes, but a third pipe can empty it in 6 minutes. The first two pipes are kept open for 5 min in the beginning and then third pipe is also opened. Time taken to empty the water tank is?

0 Answer 0 Comments 82 views January 07, 2019 at 05:59 pm

## Question : Three pipes A, B, and C can fill the tank in 10 hours, 20 hours and 40 hours respectively. In the beginning all of them are opened simultaneously. After 2 hours, tap C is closed and A and B are kept running. After the 4th hour, tap B is also closed. The remaining work is done by tap A alone. What is the percentage of the work done by tap A alone?

0 Answer 0 Comments 85 views January 07, 2019 at 05:59 pm

## Question : Three pipes A, B and C is attached to a cistern. A can fill it in 20 minutes and B can fill it in 30 minutes. C is a waste pipe.  After opening both the pipes A and B, Riya leaves the cistern to fill and returns when the cistern is supposed to be filled. But she found that waste pipe C had been left open, she closes it and now the cistern takes 5 minutes more to fill. In how much time the pipe C can empty the full cistern?

0 Answer 0 Comments 90 views January 07, 2019 at 05:57 pm

## Question : Two pipes can separately fill the tank in 15hrs and 30hrs respectively. Both the pipe are opened and when the tank is 1/3 full a leak is developed due to which 1/3 water supplied by the pipe leaks out. What is the total time to fill the tank?

0 Answer 0 Comments 93 views January 07, 2019 at 05:56 pm

## Question : One pipe fill 1/4 of the tank in 4 minutes and another pipe fills 1/5 of the tank in 4 minutes. Find the time taken by both pipe together to fill half the tank?

0 Answer 0 Comments 93 views January 07, 2019 at 05:55 pm

## Question : Two pipes P and Q can fill a tank in 10 min and 12 min respectively and a waste pipe can carry off 12 litres of water per minute. If all the pipes are opened when the tank is full and it takes one hour to empty the tank. Find the capacity of the tank.

0 Answer 0 Comments 87 views January 07, 2019 at 05:54 pm

## Question : In what time would a cistern be filled by three pipes whose diameters are 1cm, 2 cm and 3 cm running together, when the largest pipe alone can fill the tank in 21 minutes? The amount of water flowing through the pipe is directly proportional to the square of its diameter.

0 Answer 0 Comments 85 views January 07, 2019 at 05:53 pm

## Question : Two pipes A and B can fill a tank in 8 minutes and 12 minutes respectively. If both the pipes are openedsimultaneously, after what time should B be closed so that the tank is full in 6 minutes?

0 Answer 0 Comments 83 views January 07, 2019 at 05:52 pm

## Question : Two pipes can fill a tank in 15 and 20 hours respectively. The pipes are opened simultaneously and it is found that due to the leakage in the bottom, 17/7 hours extra are taken extra to fill the tank. If the tank is full, in what approximate time would the leak empty it?

0 Answer 0 Comments 87 views January 07, 2019 at 05:50 pm

## Question : On pipe P is 4 times faster than pipe Q and takes 45 minutes less than pipe Q. In what time the cistern is full if both the pipes are opened together?

0 Answer 0 Comments 83 views January 07, 2019 at 05:49 pm

## Question : Three pipe P, Q and R can fill a tank in 12 minutes, 18 minutes and 24 minutes respectively. The pipe R is closed 12 minutes before the tank is filled. In what time the tank is full?

0 Answer 0 Comments 89 views January 07, 2019 at 05:48 pm

## Question : Two pipes A and B can fill a tank in 10 hours and 15 hours respectively while a third pipe C can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then C is closed. Find the time in which the tank is full?

0 Answer 0 Comments 88 views January 07, 2019 at 05:48 pm

## Question : In what time a cistern is filled by three pipes of diameter 2cm, 4cm and 6cm respectively. If the time taken by largest pipe to fill the tank is 40 minutes. Amount of water flowing through the pipe is proportional to the diameter of the pipe

0 Answer 0 Comments 81 views January 07, 2019 at 05:46 pm

## Question : Pipe P is 4 times as fast as Q in filling a tank. If P takes 20 minutes to fill a tank, then what is the time taken by both the pipe P and Q to fill the tank?

0 Answer 0 Comments 88 views January 07, 2019 at 05:45 pm

## Question : Two pipes can separately fill the tank in 15hrs and 30hrs respectively. Both the pipe are opened and when the tank is 1/3 full a leak is developed due to which 1/3 water supplied by the pipe leaks out. What is the total time to fill the tank?

0 Answer 0 Comments 89 views January 07, 2019 at 05:44 pm

## Question : A pipe can fill a tank in 20 minutes and another pipe can fill the tank in 40 minutes. There is a waste pipe which can empty the tank in 15 minutes. First two pipes are opened for 5 minutes and then the third pipe is also opened. In what time the cistern is emptied after the third pipe also opened

0 Answer 0 Comments 80 views January 07, 2019 at 05:43 pm

## Question : A cistern can be filled by a pipe in 6 hours. A leak is developed at the bottom due to which it takes 2 hours more to fill the cistern. Find the time taken by the leak to empty the cistern when the cistern is full.

0 Answer 0 Comments 82 views January 07, 2019 at 05:43 pm

## Question : Three pipes P, Q and R can fill a tank in 12, 15 and 20 minutes respectively. If pipe P is opened all the time and pipe Q and R are opened for one hour alternatively. The tank will be full in

0 Answer 0 Comments 79 views January 07, 2019 at 05:41 pm

## Question : Two pipes A and B can fill a tank in 20 and 30 minutes respectively. Both the pipes are opened together but after 5 minutes pipe B is closed. What is the total time required to fill the tank

0 Answer 0 Comments 87 views January 07, 2019 at 05:39 pm

## Question : Two pipes P and Q can fill a tank in 36 and 24 minutes respectively. If both the pipes are opened simultaneously, after how much time pipe Q should be closed so that tank is full in 30 minutes.

0 Answer 0 Comments 84 views January 07, 2019 at 05:38 pm

## Question : Two pipes P and Q can fill a tank in 10 min and 12 min respectively and a waste pipe can carry off 12 litres of water per minute. If all the pipes are opened when the tank is full and it takes one hour to empty the tank. Find the capacity of the tank.

0 Answer 0 Comments 85 views January 07, 2019 at 05:37 pm

## Question : A pipe can empty a tank in 60 minutes alone. Another pipe whose diameter is twice the diameter of first pipe is also opened. Now find the time in which both pipe will empty the tank together.

0 Answer 0 Comments 84 views January 07, 2019 at 05:36 pm