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CEMC Gauss (Grade 8), 2010

Algebra Difficulty 1.0 Junior Find the answer Canada

The number of white balls and red balls in a jar is in the ratio of $3 : 2$ . If there are $9$ white balls, how many red balls are there?

(A) $5$ (B) $8$ (C) $2$ (D) $6$ (E) $3$

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