Mathematics · Pipes and Cisterns
Two taps can fill a cistern in 18 hours and 8 hours, respectively. A third tap can empty it in 13 hours. How long will it take to fill the empty cistern, if all of them are opened together?
- 16397 hours
- 2156397 hours
- 3176397 hours
- 496397 hours✓
Correct answer
96397 hours
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