181 Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is? Mathematics Medium Full question → A 60 gallons B 100 gallons C 120 gallons D 180 gallons
182 Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full is_______? Mathematics Medium Full question → A 6 hrs B 6 2/3 hrs C 7 hrs D 7 1/2 hrs
183 A large tanker can be filled by two pipes A and B in 60 and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half? Mathematics Medium Full question → A 15 min B 20 min C 27.5 min D 30 min
184 Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank? Mathematics Medium Full question → A 10 min 20 sec B 11 min 45 sec C 12 min 30 sec D 14 min 40 sec
185 A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is? Mathematics Medium Full question → A 6 hrs B 10 hrs C 15 hrs D 30 hrs
186 A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank? Mathematics Medium Full question → A 20 hrs B 25 hrs C 35 hrs D Cannot be determined
187 One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill tank in 36 min, then the slower pipe alone will be able to fill the tank in? Mathematics Medium Full question → A 81 min B 108 min C 144 min D 192 min
188 Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill cistern. How much time will be taken by A to fill the cistern separately? Mathematics Medium Full question → A 1 hr B 2 hrs C 6 hrs D 8 hrs
189 A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/3 hours to fill the tank. The leak can drain all the water of the tank in? Mathematics Medium Full question → A 4 1/3 hrs B 7 hrs C 8 hrs D 14 hrs
190 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? Mathematics Medium Full question → A 90 min B 100 min C 110 min D 120 min
191 Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P, Q and R respectively. What is the proportion of solution R in the liquid in the tank after 3 minutes? Mathematics Medium Full question → A 5/11 B 6/11 C 7/11 D 8/11
192 Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in? Mathematics Medium Full question → A 1 13/17 hours B 2 8/11 hours C 3 9/17 hours D 4 1/2 hours
193 Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many hours will the tank be filled? Mathematics Medium Full question → A 2 B 2.5 C 3 D 3.5
194 A water tank is two-fifth full. Pipe A can fill a tank in 10 minutes and pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely? Mathematics Medium Full question → A 6 min. to empty B 6 min. to full C 9 min. to empty D 9 min. to full
195 A tap can fill a tank in 6 hours. After half the tank is filled three more similar taps are opened. What is the total time taken to fill the tank completely? Mathematics Medium Full question → A 3 hrs 15 min B 3 hrs 45 min C 4 hrs D 4 hrs 15 min
196 A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously, then after how much time will the cistern get filled? Mathematics Medium Full question → A 4.5 hrs B 5 hrs C 6.5 hrs D 7.2 hrs
197 Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank? Mathematics Medium Full question → A 12 min B 15 min C 25 min D 50 min
198 A tank is filled in eight hours by three pipes A, B and C. Pipe A is twice as fast as pipe B, and B is twice as fast as C. How much time will pipe B alone take to fill the tank? Mathematics Medium Full question → A 24 hours B 28 hours C 32 hours D 36 hours
199 Pipe A can fill a tank in 6 hours. Due to a leak at the bottom, it takes 9 hours for the pipe A to fill the tank. In what time can the leak alone empty the full tank? Mathematics Medium Full question → A 16 hours B 15 hours C 18 hours D 17 hours
200 Pipe A can fill a tank in 16 minutes and pipe B cam empty it in 24 minutes. If both the pipes are opened together after how many minutes should pipe B be closed, so that the tank is filled in 30 minutes? Mathematics Medium Full question → A 20 B 24 C 23 D None of these