Mathematics · Time and Work
Two pipes can fill a tank in 20 hours and 60 hours respectively. A third pipe is an outlet pipe. If all three pipes are opened together, the tank gets filled up in 40 hours. How much time will the outlet pipe alone take to empty the full tank?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 130 hours
- 228 hours
- 320 hours
- 424 hours✓
Correct answer
24 hours
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