Mathematics · Pipes and Cisterns
Two identical inlet pipes working together can fill a tank in 30 minutes, and five identical outlet pipes working together can empty the full tank in 15 minutes. One inlet pipe is opened, and when the tank is 40% full, one outlet pipe is also opened. How many total minutes will it take for the tank to be completely full from the start?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1218 minutes
- 2208 minutes
- 3204 minutes✓
- 4206 minutes
Correct answer
204 minutes
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