GMAT 考满分题库

Magoosh - 数学DS - 178
If$$ x^2 + 2xwy + 3wy^2 = 144$$, and if x & y & w are all positive, then what is the value of (x + 3y)?

Statement #1: x + 2y = 11

Statement #2: w = 3
  • AStatement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.
  • BStatement 2 ALONE is sufficient to answer the question, but statement 1 alone is NOT sufficient.
  • CBOTH statements 1 and 2 TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient.
  • DEach statement ALONE is sufficient to answer the question.
  • EStatement 1 and 2 TOGETHER are NOT sufficient to answer the question. Previous
显示答案
正确答案: B

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