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A tank contains 800 liters of fresh water. Brine containing 2.5 N/L of salt enters the tank at 20 L/min, and the mixture, kept uniform by stirring, runs out at 30 L/min. When will the amount of salt in the mixture be 644.5 N? 54.5 minutes 30 minutes 40 minutes 50 minutes

A tank contains 800 liters of fresh water. Brine containing 2.5 N/L of salt enters the tank at 20 L/min, and the mixture, kept uniform by stirring, runs out at 30 L/min. When will the amount of salt in the mixture be 644.5 N? 54.5 minutes 30 minutes 40 minutes 50 minutes

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A tank contains 800 liters of fresh water. Brine containing 2.5 N/L of salt enters the tank at 20 L/min, and the mixture, kept uniform by stirring, runs out at 30 L/min. When will the amount of salt in the mixture be 644.5 N? 54.5 minutes 30 minutes 40 minutes 50 minutes
Transcribed Image Text:A tank contains 800 liters of fresh water. Brine containing 2.5 N/L of salt enters the tank at 20 L/min, and the mixture, kept uniform by stirring, runs out at 30 L/min. When will the amount of salt in the mixture be 644.5 N? 54.5 minutes 30 minutes 40 minutes 50 minutes
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