Mathematics · Pipes and Cisterns
Two inlet pipes can fill a tank in 20 hours and 60 hours respectively. A third pipe serves as an outlet. If all three pipes are opened together, the tank gets filled up in 40 hours. How many hours will the outlet pipe alone take to empty the full tank?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 124 hours✓
- 220 hours
- 328 hours
- 430 hours
Correct answer
24 hours
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