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A Chemist Needs 20 Liters of a 45% Acid Solution

Question 63

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A chemist needs 20 liters of a 45% acid solution.The solution is to be mixed from three solutions whose acid concentrations are 10%, 20%, and 50%.How many liters of the 50% solution should the chemist use if trying to use as little as possible of the 50% solution?


A) A chemist needs 20 liters of a 45% acid solution.The solution is to be mixed from three solutions whose acid concentrations are 10%, 20%, and 50%.How many liters of the 50% solution should the chemist use if trying to use as little as possible of the 50% solution? A) liters B) liters C) liters D) liters E) liters liters
B) A chemist needs 20 liters of a 45% acid solution.The solution is to be mixed from three solutions whose acid concentrations are 10%, 20%, and 50%.How many liters of the 50% solution should the chemist use if trying to use as little as possible of the 50% solution? A) liters B) liters C) liters D) liters E) liters liters
C) A chemist needs 20 liters of a 45% acid solution.The solution is to be mixed from three solutions whose acid concentrations are 10%, 20%, and 50%.How many liters of the 50% solution should the chemist use if trying to use as little as possible of the 50% solution? A) liters B) liters C) liters D) liters E) liters liters
D) A chemist needs 20 liters of a 45% acid solution.The solution is to be mixed from three solutions whose acid concentrations are 10%, 20%, and 50%.How many liters of the 50% solution should the chemist use if trying to use as little as possible of the 50% solution? A) liters B) liters C) liters D) liters E) liters liters
E) A chemist needs 20 liters of a 45% acid solution.The solution is to be mixed from three solutions whose acid concentrations are 10%, 20%, and 50%.How many liters of the 50% solution should the chemist use if trying to use as little as possible of the 50% solution? A) liters B) liters C) liters D) liters E) liters liters

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