What is the smoothie mix ratio?

• A. 2,4,6
• B. 3,6,9
• C. 6,9,12
• D. 1,2,3

Answer: (C)

A smoothie mix ratio shows how much of each ingredient to use relative to the others, and ratios stay the same if you scale all parts up or down. To check which set fits the intended balance, simplify each one by dividing all numbers by their greatest common divisor. The numbers 6, 9, and 12 share a factor of 3, giving 2:3:4. That means this set uses the proportion of 2 parts of the first ingredient, 3 parts of the second, and 4 parts of the third, and it can be scaled to any total amount while preserving the same balance. The other options simplify to 1:2:3, which is a different balance among the ingredients, so they don’t match the target mix. Since the needed ratio is 2:3:4, the set that reduces to 2:3:4 is the correct choice.