Solve the system.A 20% iodine solution is mixed with a 50% iodine solution to produce 3 gallons of 
iodine solution. How many gallons of each solution were needed?
A. 1 gal of 20% solution, 2 gal of 50% solution
B. 2 gal of 20% solution, 1 gal of 50% solution
C. 1 gal of 20% solution, 3 gal of 50% solution
D. 2 gal of 20% solution, 2 gal of 50% solution
Answer: A
Mathematics
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