Mathematics · Pipes and Cisterns
Pipes A and B can fill a tank in 18 hours and 27 hours, respectively, whereas pipe C can empty the full tank in 54 hours. All three pipes are opened together, but pipe C is closed after 12 hours. In how much time (in minutes) will one-third of the remaining part of the tank be filled by A and B together?
- 115
- 230
- 336
- 424✓
Correct answer
24
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