GRE Problem Solving Question 1098

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For any Company X listed in the chart above, let ?X be defined as the difference between the mean annual donation of employees of Company X in the period 1980–1990 and that for the same company in the period 1980–2000. Which of the following is closest to the ratio of ?M to ?B?

  • A 2 to 1
  • B 3 to 2
  • C 1 to 1
  • D 2 to 3
  • E 1 to 2

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