Solve the problem.In a chemistry class, 6 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 2.0 L
B. 6.0 L
C. 4.0 L
D. 3.0 L
Answer: D
Mathematics
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, 
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A. 
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?
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?
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