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Mathematics, 30.07.2019 11:00 abraham1366

How many liters of a 10% saline solution must be added to to 4 liters of a 40% saline solution to obtain a 15% saline solution? a)20 l b)4 l c)2 l d)48 l plz explain the steps and how to get answer

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How many liters of a 10% saline solution must be added to to 4 liters of a 40% saline solution to ob...
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