Mathematics · Pipes and Cisterns
Pipes P and Q can fill a tank in 9 and 12 hours respectively. Pipe R can empty it in 15 hours. If all three pipes are opened together, in how much time will the tank be full?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 181923 hours
- 271923 hours✓
- 37 hours
- 46 hours
Correct answer
71923 hours
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