GMAT 考满分题库

- 数学DS -
If (y+3)(y-1) - (y-2)(y-1) = r(y-1), what is the value of y?

(1) $${r}^{2}={25}$$

(2) r = 5
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are NOT sufficient.
显示答案
正确答案: E

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