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?

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?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter15: Fluids

Section: Chapter Questions

Problem 46PQ

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