Mathematics · Pipes and Cisterns
Two inlet taps can fill a cistern in 4 hours and 31 hours respectively, while a third outlet tap can empty the full cistern in 31 hours. How long (in hours) will it take to fill one-fourth of the empty cistern if all three taps are opened together?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14 hours
- 21 hour✓
- 33 hours
- 42 hours
Correct answer
1 hour
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