Mathematics · Time and Work
Two pipes can separately fill a tank in 9 hours and 12 hours respectively. If both pipes are opened simultaneously, the tank will be filled in how many hours?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1517 hours✓
- 2527 hours
- 3537 hours
- 45 hours
Correct answer
517 hours
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