Mathematics · Time and Work
Three pipes A, B, and C can fill a cistern in 12 hours, 15 hours, and 20 hours, respectively. All three are opened together. After 3 hours, pipe A is closed and after a further 3 hours, pipe B is also closed. How much time will pipe C alone take to fill the remaining part?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14 hours
- 23 hours
- 31 hour
- 42 hours✓
Correct answer
2 hours
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