Mathematics · Pipes and Cisterns
A cistern has three pipes: A, B, and C. A and B alone can completely fill the cistern in 4 hours and 3 hours, respectively, and C can empty the completely filled cistern in 2 hours. If all three pipes are opened simultaneously in the empty cistern, then the cistern will get completely full in:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110 hours
- 216 hours
- 312 hours✓
- 414 hours
Correct answer
12 hours
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