Mathematics · Pipes and Cisterns
Two pipes can fill a cistern separately in 20 minutes and 40 minutes respectively, while a waste pipe can drain off 35 gallons of water per minute. If all three pipes are opened together, the empty cistern gets filled in 1 hour (60 minutes). What is the total capacity of the cistern?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1500 gallons
- 2600 gallons✓
- 3750 gallons
- 4800 gallons
Correct answer
600 gallons
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