A pipe can empty a tank in 40 minutes. A second pipe with diameter twice as much as that of the first is also attached with the tank to empty it. The two together can empty the tank in? Mark as favorite Copy Link 8 minutes 13 and 1/3 minutes 30 minutes 38 minutes Check Answer
A cistern is provided with two pipes A and B. A can fill it in 20 minutes and B can empty it in 30 minutes. If A and B be kept open alternately for one minute each, how soon will the cistern be filled? Mark as favorite Copy Link 121 minutes 110 minutes 115 minutes 120 minutes Check Answer
A tap drips at a rate of one drop/ sec. 600 drops make 100ml. The number of litres wasted in 300 days is? Mark as favorite Copy Link 4320000 432000 43200 4320 Check Answer
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 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
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