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A company is making a batch of salt water to sell for aquariums. They have designed...

A company is making a batch of salt water to sell for aquariums. They have designed a system to get the concentration they need to prepare for shipment. They start with a large 1000L capacity tank containing a salt solution of 400L at 0.25 grams of salt per liter. They add a solution at a rate of 5 liters per minute containing 10 grams of salt per liter. At the same time 3 liters per minute is being drained from the tank.

What is the concentration of the salt solution when the tank becomes full at 1000 Liters?

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