Mathematics · Time and Work
A cistern can be filled with water by an inlet pipe in 10 hours, and it can be emptied by a second outlet pipe in 8 hours. If both the pipes are opened when the cistern is full, the time in which it will be completely emptied is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 142 hours
- 240 hours✓
- 344 hours
- 445 hours
Correct answer
40 hours
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