Mathematics · Time and Work
Two pipes, P and Q, can fill a cistern in 30 hours and 40 hours, respectively. If pipe P is opened alone for 15 hours and then closed, after which pipe Q fills the cistern until it is full, then what percentage of the cistern is filled by pipe P relative to the portion filled by pipe Q?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1150%
- 2120%
- 350%
- 4100%✓
Correct answer
100%
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