Solve the problem.Dmitri needs 7 liters of a 37% solution of sulfuric acid for a research project in molecular biology. He has two supplies of sulfuric acid solution: one is an unlimited supply of the 42% solution and the other an unlimited supply of the 35% solution. How many liters of each solution should Dmitri use?
A. 42% solution: 2.5 L; 35% solution: 4.5 L
B. 42% solution: 5 L; 35% solution: 2 L
C. 42% solution: 2 L; 35% solution: 5 L
D. 42% solution: 1.5 L; 35% solution: 5.5 L
Answer: C
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