Mathematics · Pipes and Cisterns
Two taps A and B can fill a tank with water in 20 minutes and 15 minutes, respectively. A third tap C can empty the full tank in 6 minutes. After the taps A and B fill the tank for 5 minutes, the tap C is opened to empty it while A and B continue to fill it. How many minutes will it take to empty the tank after tap C is opened?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11123 minutes✓
- 21045 minutes
- 31025 minutes
- 41013 minutes
Correct answer
1123 minutes
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