Two pipes can fill a tank with water in 15 and 12 hours respectively and a third pipe can empty it in 4 hours. If the pipes be opened in order at 8, 9 and 11 a.m. respectively, the tank will be emptied at? Mark as favorite Copy Link 11 : 40 a.m. 12 : 40 p.m. 1 : 40 p.m. 2 : 40 p.m. Check Answer
Two pipes can independently fill a bucket in 20 minutes and 25 minutes. Both are opened together for 5 minutes after which the second pipe is turned off. What is the time taken by the first pipe alone to fill the remaining portion of the bucket? Mark as favorite Copy Link 11 minutes 16 minutes 20 minutes 15 minutes Check Answer
A pipe can fill a tank in ‘x’ hours and another pipe can empty it in‘y’ (y > x) hours. If both the pipes are open, in how many hours will the tank be filled? Mark as favorite Copy Link (x – y) hours (y – x) hours xy/x - y hours xy/y - x hours Check Answer
Two pipes X and Y can fill a cistern in 24 minutes and 32 minutes respectively. If both the pipes are opened together, then after how much time (in minutes) should Y be closed so that the tank is full in 18 minutes? Mark as favorite Copy Link 10 8 6 5 Check Answer
There are two pumps to fill a tank with water. First pump can fill the empty tank in 8 hours, while the second in 10 hours. If both the pumps are opened at the same time and kept open for 4 hours, the part of tank that will be filled up is? Mark as favorite Copy Link 9/10 1/10 2/5 1/5 Check Answer
A tap can fill a cistern in 40 minutes and a second tap can empty the filled cistern in 60 minutes. By mistake without closing the second tap, the first tap was opened. In how many minutes will the empty cistern be filled? Mark as favorite Copy Link 72 84 108 120 Check Answer
A tank can be filled by two pipes in 20 minutes and 30 minutes respectively. When the tank was empty, the two pipes were opened. After some time, the first pipe was stopped and the tank was filled in 18 minutes. After how much time of the start was the first pipe stopped? Mark as favorite Copy Link 5 minutes 8 minutes 10 minutes 12 minutes Check Answer
A cistern is normally filled in 8 hours but takes another 2 hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in? Mark as favorite Copy Link 16 hours 20 hours 25 hours 40 hours Check Answer
Three pipes A, B and C can fill a tank in 6 hours. After working together for 2 hours, C is closed and A and B fill the tank in 8 hours. The time (in hours) in which the tank can be filled by pipe C alone is? Mark as favorite Copy Link 10 12 8 9 Check Answer
Three pipes A, B and C can fill a cistern in 6 hours. After working at it together for 2 hours, C is closed and A and B fill it in 7 hours more. The time taken by C alone to fill the cistern is? Mark as favorite Copy Link 14 hours 15 hours 16 hours 17 hours Check Answer