AMC 8 1991 Problem 17
AMC8 1991 年第 17 题
数列与规律★★★☆☆
Problem An auditorium with 20 rows of seats has $10$ seats in the first row. Each successive row has one more seat than the previous row. If students taking an exam are permitted to sit in any row, but not next to another student in that row, then the maximum number of students that can be seated for an exam is
一个有 20 排座位的礼堂，第一排有 10 个座位。每一排比前一排多一个座位。如果参加考试的学生可以坐在任意一排，但不能与该排其他学生相邻，那么能安排考试的最大学生数是多少？
- A.150
- B.180
- C.200
- D.400
- E.460
正确答案 · Correct Answer
C
解析 · Solution
解析整理中
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