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QUESTION
The radiator in Natalie's car contains 6.3 L of antifreeze and water. This mixture is 30% antifreeze.
The radiator in Natalie’s car contains 6.3 L of antifreeze and water. This mixture is 30% antifreeze. How much of this mixture should she drain and replace with pure antifreeze so that there will be a mixture of 50% antifreeze?
