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A tank contains (400 L) of brine made by dissolving (20 kg) of salt in water. Salt water containing (0.75 kg) of salt per liter runs in at the rate of (2 L/min) and the well-stirred mixture runs out at the same rate of (5 L/min). Find the amount of salt in the tank after 15 minutes.

A tank contains (400 L) of brine made by dissolving (20 kg) of salt in water. Salt water containing (0.75 kg) of salt per liter runs in at the rate of (2 L/min) and the well-stirred mixture runs out at the same rate of (5 L/min). Find the amount of salt in the tank after 15 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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H.W2: A tank contains (400 L) of brine made by dissolving (20 kg) of salt in water. Salt water containing (0.75 kg) of salt per liter runs in at the rate of (2 L/min) and the well-stirred mixture runs out at the same rate of (5 L/min). Find the amount of salt in the tank after 15 minutes.
Transcribed Image Text:H.W2: A tank contains (400 L) of brine made by dissolving (20 kg) of salt in water. Salt water containing (0.75 kg) of salt per liter runs in at the rate of (2 L/min) and the well-stirred mixture runs out at the same rate of (5 L/min). Find the amount of salt in the tank after 15 minutes.
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