Mathematics · Time and Work
Two pipes can fill a cistern separately in 36 minutes and 45 minutes, respectively. A waste pipe can drain off 40 litres per minute. If all three pipes are opened together, the cistern fills in one hour. Find the capacity of the cistern (in litres).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1400
- 2300
- 31200✓
- 4600
Correct answer
1200
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