Mathematics · Time and Work
A cistern has a hole in the bottom through which the water leaks. An inlet tap can fill the cistern in 6 hours and the leak can completely empty the full cistern in 15 hours. If both the tap and the leak are open simultaneously, how long will it take to completely fill the empty cistern?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110 hours✓
- 226.1 hours
- 314 hours
- 422 hours
Correct answer
10 hours
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