General Studies · Pipe and Cistern
Pipe A can fill a tank in 4 hours while pipe B can empty it in 6 hours. If both the pipes are opened together in an empty tank, how much time will it take to completely fill the tank?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18 hours
- 29 hours
- 310 hours
- 412 hours✓
Correct answer
12 hours
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