Mathematics · Time and Work
Two pipes R1 and R2 can fill an empty tank in 9 hours and 12 hours respectively. Pipe R3 can empty that completely filled tank in 24 hours. Firstly both pipes R1 and R2 are opened and after 2 hours pipe R3 is also opened. In how much total time will the tank be completely filled?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 16 hours✓
- 27 hours
- 36.5 hours
- 48 hours
Correct answer
6 hours
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