GMAT 考满分题库

- 数学PS -
In the 12 months of 1999, the range of sales was 240. In the 12 months of 2000, the range of sales was 320. What is the minimum range of sales in the 24 months of 1999 and 2000?
  • A80
  • B160
  • C240
  • D280
  • E320
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正确答案: E

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