Mathematics · Time and Work
Pipe A can fill a tank in 16 minutes while Pipe B can fill the same tank in 24 minutes. Both pipes are opened together, but after 4 minutes, the working efficiency of Pipe A doubles and the working efficiency of Pipe B becomes half of its original. How many more minutes will it take to fill the tank completely?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14 minutes✓
- 25 minutes
- 36 minutes
- 47 minutes
Correct answer
4 minutes
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