Register To Attempt Complete Test
A tap A can fill an acid into a vessel in 30 minutes. Another tap B can fill alkali into a vessel in 20 minutes and a leak C at the bottom of the vessel can empty the vessel in 12 minutes. Initially, both the taps A and B are opened for 6 minutes. Then tap B is closed and leak C is opened. For how many more minutes should both these taps A and C be kept opened so that the proportion of acid and alkali is same? (Assume tap C removes acid and alkali in exactly the same ratio as they were present in the solution when tap C was just opened and no reaction takes place).