GMAT 考满分题库

Magoosh - 数学PS - 77
A helicopter company charges $85 for the first kilometer of a trip and $5 for every kilometer after that. If the total cost of a trip was $365, how many kilometers were flown?
  • A55
  • B56
  • C57
  • D58
  • E59
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正确答案: C

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