GMAT 考满分题库

- 数学PS -
After Tom walked from A to B, he decided to start going back. When he reached 10% of the whole journey,what fraction of the total round trip is the trip he has traveled?
  • A2/3
  • B3/4
  • C6/5
  • D11/20
  • E15/22
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正确答案: D

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