GMAT 考满分题库

Magoosh - 数学PS - 160
Dimitri weighs x pounds more than Allen weighs. Together, Allen and Dimitri weigh a total of y pounds. Which of the following represents Allen`s weight?
  • A$$y-\frac{x}{2}$$
  • B$$2x-\frac{y}{2}$$
  • C$$({y-x})\over{2}$$
  • Dy-2x
  • E2x-y
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正确答案: C

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