A tank contains 100 gal of water. In error, 300lbs of salt are poured into the tank instead of 200 lbs. to correct this condition, a stopper is removed from the bottom of the tank allowing 3gal of brine to flow out per minute. At the same time, 3 gallons of fresh water per minute are pumped into the tank. If the mixture is kept uniform by constant stirring, how long it will take for the brine to contain the desired amount of salt?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter14: Fluid Mechanics
Section: Chapter Questions
Problem 125CP: The inside volume of a house is equivalent to that of a rectangular solid 13.0 m wide by 200 m long...
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A tank contains 100 gal of water. In error, 300lbs of salt are poured into the tank instead of 200 lbs. to correct this condition, a stopper is removed from the bottom of the tank allowing 3gal of brine to flow out per minute. At the same time, 3 gallons of fresh water per minute are pumped into the tank. If the mixture is kept uniform by constant stirring, how long it will take for the brine to contain the desired amount of salt? 

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