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?

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Inasurveyofstudents,eachstudentselectedfromalistof12songsthe2songsthatthestudentlikedbest.Ifeachsong

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?
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?

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?
一群学生,每人从12首歌的列表中选出2首最喜欢的,如果每首歌被选择了4次,学生应该有多少人?
12X4=48(次) 每人选2首,共计48/2=24(人)

答案错了吧,三角形面积 π*(半径)/2,扇形面积 π*(半径)平方/6,π/6 > 1/2 ,应该是扇形面积大
满意请采纳。

12×4/2 = 24

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