Mathematics · Pipes and Cisterns
Pipes A and B can fill a tank in 4 hours and 6 hours 40 minutes, respectively; whereas a third pipe C can empty the full tank in 1 hour 40 minutes. A and B are opened at 2:00 p.m. and 3:00 p.m., respectively, and C is opened at 4:00 p.m. The tank will be completely empty at:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 17:15 p.m.✓
- 27:00 p.m.
- 37:20 p.m.
- 47:10 p.m.
Correct answer
7:15 p.m.
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