A certain bag contains only red balls, blue balls, and green balls. What percent of all the balls in the bag are red?

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A certain bag contains only red balls, blue balls, and green balls. What percent of all the balls in the bag are red?

(1) The ratio of the number of red balls to the number of blue balls in the bag is 1:3.

(2) There are 2 green balls in the bag.

[spoiler]OA=E[/spoiler]

Source: GMAT Prep