Solve the Problem. -Dmitri Needs 7 Liters of a 22% Solution of Sulfuric

Multiple Choice

Solve the problem.
-Dmitri needs 7 liters of a 22% 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 7% solution and the other an unlimited
Supply of the 42% solution. How many liters of each solution should Dmitri use?

A) 7% solution: 3.5 liters; 42% solution: 3.5 liters
B) 7% solution: 3 liters; 42% solution: 4 liters
C) 7% solution: 4.5 liters; 42% solution: 2.5 liters
D) 7% solution: 4 liters; 42% solution: 3 liters