GRE Problem Solving Question 152

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Source: OG2

By weight, liquid A makes up 8 percent of solution R and 18 percent of solution S. If 3 grams of solution R are mixed with 7 grams of solution S, then liquid A accounts for what percent of the weight of the resulting solution?

  • A 10%
  • B 13%
  • C 15%
  • D 19%
  • E 26%

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