标题: 请问这道数学题怎么解？ [打印本页] 作者: Fanzi316316 时间: 2024-11-23 07:14 标题: 请问这道数学题怎么解？ [md]In a survey of students, each student selected from a list of 12 songs the 2 songs that the student liked best. If each song was selected 4 times, how many students were surveyed?