Mathematics · Pipes and Cisterns
Two taps can fill a cistern in 13 hours and 11 hours, respectively. A third tap can empty it in 14 hours. How long will it take to fill the empty cistern, if all of them are opened together?
- 19 72193 hours
- 220 72193 hours
- 310 72193 hours✓
- 472 72193 hours
Correct answer
10 72193 hours
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