DS: 刚刚模考做到 A certain one-day seminar consisted of a morning session and an afternoon session. If each of the 128 people attending the seminar attended at least one of the two sessions, how many of the people attended the morning session only? 1) 3/4 of the people attended both sessions. 2) 7/8 of the people attended the afternoon session. 答案: B A certain city with a population of 132,000 is to be divided into 11 voting district, and no district is to have a population that is more than 10% greater than the population of any other district. What is the minimum possible population that the least populated district could have? 1. 10700 2. 10800 3. 10900 4. 11000 5. 11100 答案: D --

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