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Mathematics, 31.10.2019 04:31 gbprulesmile
At a dairy plant a milk tank can be filled in 8 hours using the outbound the tank can be emptied in 12 hours if both valves are open and milk is being pumped into the tank how long will it take to fill the tank
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At a dairy plant a milk tank can be filled in 8 hours using the outbound the tank can be emptied in...
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