Mathematics · Time and Work
A water tank is initially one-tenth full. Pipe A can empty the tank in 6 minutes. After this, pipes A, B and C are opened together to fill the tank, where pipe B can fill it in 30 minutes and pipe C in 40 minutes. How long will it take to completely fill the tank?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 125 minutes
- 224 minutes✓
- 328 minutes
- 435 minutes
Correct answer
24 minutes
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