Mathematics · Pipes and Cisterns
A tank is fitted with pipes P and Q, which can fill it in 8 and 12 hours respectively, and pipe R can empty it in 24 hours. Initially, the tank is one-third full. Pipes P and R are opened together for 2 hours. Then, pipe P is closed, and pipe Q (along with R) is opened for 3 hours. Finally, all three pipes are opened together. Find the total time taken to fill the tank completely.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1714 hours✓
- 2612 hours
- 3812 hours
- 48 hours
Correct answer
714 hours
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