标题: OG数学习题求助 [打印本页] 作者: famousfatboy 时间: 2018-5-15 13:23 标题: OG数学习题求助 OG习题，百思不得解，求教大神：
每个学校只抽两节课，为什么会出现老师教三节课，跨学校上课？万分感激
A certain experimental mathematics program was tried out in 2 classes in each of 32 elementary schools and involved 37 teachers. Each of the classes had 1 teacher and each of the teachers taught at least 1, but not more than 3, of the classes. If the number of teachers who taught 3 classes is n, then the least and greatest possible values of n, respectively, are
A 0 and 13
B 0 and 14
C 1 and 10
D 1 and 9
E 2 and 8 作者: Waheed 时间: 2018-5-15 14:33
32个学校，每个学校2个班，一共64个班。37个老师给这64
个班上课，每个老师最少上一个班，最多上三个班，求上三个班的老师的最大值和最小值。作者: famousfatboy 时间: 2018-5-15 20:18