GMAT 考满分题库

- 数学PS -
The value of the product of u and v is equal to twenty times the ratio of the value obtained by subtracting v from u to the value of v. If v equals 4,what is the value of u?
  • A50
  • B25
  • C20
  • D10
  • E5
显示答案
正确答案: C

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