Two taps A and B can fill a tank in 15 min and 25 min respectively. Both tapes are opened together but due to some problem they work 5/6 and 5/8 of their efficiency, after some time the problem was removed and now the tank will fill in 5 min. Then after how much time the problem is removed.

Two taps A and B can fill a tank in 12 min and 16 min respectively. Both tapes are opened together but due to some problem they work 7/8 and 5/6 of their efficiency, after some time the problem was removed and now the tank will fill in 3 min. Then after how much time the problem is removed.

Two taps A and B can fill a tank in 30 min and 36 min respectively. Both tapes are opened together but due to some problem they work 5/6 and 9/10 of their efficiency, after some time the problem was removed and if the tank filled in 16(1)/(2) min total . Then after how much time the problem is removed.

Two taps A and B can fill a tank in 10 hours and 15 hours, respectively .If both the taps are opened together the tank will be filled in how many hours?

Two taps A and B can fill a tank in 15 minutes and 20 minutes respectively.If both the taps are opened simultaneouly, then in how much time can the empty tank be filled ?

Two taps A and B can fill a tank in 15 minutes and 20 minutes respectively.If both the taps are opened simultaneouly, then in how much time can the empty tank be filled ?

If two pipes A and B can fill a tank in 20 and 30 min separately. If both pipes are opened, then tank will be filled in

Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?