A tank has three inlets and one outlet. The inlets fill the tank in 20, 40 and 60 minutes, respectively. The outlet empties the tank in 50 minutes. How long will it take to fill the tank with all the inlets and outlet opened simultaneously?
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tank has three inlets and one outlet. The inlets fill the tank in 20, 40 and 60 minutes, respectively. The outlet empties the tank in 50 minutes. How long will it take to fill the tank with all the inlets and outlet opened simultaneously?
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