Mathematics · Time and Work
Two pipes A and B can fill a tank in 23 hours and 34 hours, respectively. Another waste pipe C can empty the tank in 20 hours. If all three pipes are opened together, how long will it take to fill the tank (rounded off to two decimal places)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 143.69 hours✓
- 243.93 hours
- 343.37 hours
- 443.14 hours
Correct answer
43.69 hours
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