Question
Time taken by ‘A’ to fill a tank, which is 50% empty, is 20 minutes, while time taken by ‘B’ to fill the same tank, when it is 25% full, is 30 minutes. On a particular day, when the tank is completely empty, ‘A’ and ‘B’ are opened together. Find the time (in minutes) after which ‘A’ must be closed so that the tank gets completely filled in 24 minutes.
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