Mathematics · Pipes and Cisterns
Pipes A and B can fill a tank in 8 hours and 12 hours, respectively. C is an outlet pipe. When all three are opened together, the tank is filled in 131⁄3 hours. C alone can empty the full tank in:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 16 hours
- 28 hours
- 371⁄2 hours✓
- 461⁄2 hours
Correct answer
71⁄2 hours
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