Mathematics · Time and Work
Two pipes A and B can fill a tank in 20 minutes and 30 minutes, respectively. A third pipe C can empty the tank in 40 minutes. If all three pipes are opened simultaneously, how long will it take to fill the tank? (Rounded off to 2 decimal places.)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 121.23 minutes
- 220.15 minutes
- 317.14 minutes✓
- 424.12 minutes
Correct answer
17.14 minutes
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