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How many liters of a 20 percent solution of saline should a nurse mix with 10 liters of a 50 percent solution to obtain a mixture that is 40 percent saline?
Wiki User
∙ 13y ago
Let x = the amount of 20% solution
Let x + 10 = the amount of the final solution.
So we have:
(.20)x + (.50)(10) = (.40)(x + 10)
.20x + 5 = .40x + 4
.20x = 1
x = 5 liters of 20% solution of saline.
Wiki User
∙ 13y ago
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