[img]2014m9x/ct_egreqj_egreqbj_0016_20148[/img] [br] CIn this question you are n

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问题 [br]

选项

答案 C

解析 In this question you are not told whether all of the 9,000 people attending the game were students. Let z be the number of people attending the game who were not students. The people attending the game can be broken down into three groups: students from College C, students not from College C, and people who were not students. This can be expressed algebraically as 9,000 = x + y + z, where x represents the number of students from College C attending the game and y represents the number of students attending the game who were not from College C. Therefore, 9,000 - x - y = z is the number of people attending the game who were not students. The correct answer is Choice C.
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