12 pumps working 6 hours a day can empty a completely filled reservoir in 15 days. How many such pumps working 9 hours a day will empty the same reservoir in 12 days? Mark as favorite Copy Link 15 9 10 12 Check Answer
Two pipes A and B can separately fill a cistern in 60 min and 75 min respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 min. In how much time, the third pipe alone can empty the cistern? Mark as favorite Copy Link 85 min 95 min 105 min 100 min Check Answer
Two pipes A and B can separately fill a cistern in 60 minutes and 75 minutes respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 minutes. In how much time the third pipe alone can empty the cistern? Mark as favorite Copy Link 110 minutes 100 minutes 120 minutes 90 minutes Check Answer
One tap can fill a water tank in 40 minutes and another tap can make the filled tank empty in 60 minutes. If both the taps are open, in how many hours will the empty tank be filled? Mark as favorite Copy Link 2 hours 2.5 hours 3 hours 3.5 hours Check Answer
A cistern is normally filled in 8 hours but takes two 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 20 hrs 28 hrs 36 hrs 40 hrs Check Answer
A tap can empty a tank in one hour. A second tap can empty it in 30 minutes. If both the taps operate simultaneously, how much time is needed to empty the tank? Mark as favorite Copy Link 20 minutes 30 minutes 40 minutes 45 minutes Check Answer
Three Taps A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The number of hours taken by C alone to fill the tank is? Mark as favorite Copy Link 10 12 14 16 Check Answer
Two pipes can fill a cistern in 3 hours and 4 hours respectively and a waste pipe can empty it in 2 hours. If all the three pipes are kept open, then the cistern will be filled in? Mark as favorite Copy Link 5 hours 8 hours 10 hours 12 hours Check Answer
One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 min, then the slower alone will be able to fill the tank in? Mark as favorite Copy Link 81 min 108 min 144 min 192 min Check Answer
Two pipes A and B can fill a tank in 20 minutes and 30 minutes respectively. If both pipes are opened together, the time taken to fill the tank is? Mark as favorite Copy Link 50 minutes 12 minutes 25 minutes 15 minutes Check Answer