Mathematics · Pipes and Cisterns
An inlet pipe can fill a tank in 10 minutes. There are two outlet pipes that can empty the tank separately in 12 and 15 minutes respectively. If all the pipes are opened together when the tank is full, in what time will the tank get filled or emptied?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Filled in 36 minutes
- 2Filled in 75 minutes
- 3Emptied in 18 minutes
- 4Emptied in 20 minutes✓
Correct answer
Emptied in 20 minutes
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