Mathematics · Time and Work
Pipe A can fill an empty cistern alone in 18 hours and pipe B can fill the same cistern alone in 27 hours. The time taken by them to fill half of the cistern by operating together will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1575 hours
- 2275 hours✓
- 3775 hours
- 4725 hours
Correct answer
275 hours
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