Mathematics · Time and Work
Pipes A and B can fill a tank with water in 30 minutes and 40 minutes, respectively, while pipe C can drain off 51 litres of water per minute. If all the three pipes are opened together, the tank is filled in 90 minutes. What is the capacity (in litres) of the tank?
- 11080✓
- 2720
- 3864
- 4900
Correct answer
1080
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