Students selecting songs

In a survey of students, each student selected from a list of 12 songs, the 2 they liked the best. If each song was selected 4 times, how many students were surveyed...

Ans choices: 96, 48, 32, 24, 18

Thanks in advance.

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jayhawk2001: Community Manager; Posts: 789; Joined: Sun Jan 28, 2007 3:51 pm; Location: Silicon valley, California; Thanked: 30 times; Followed by:1 members

by jayhawk2001 » Mon Sep 03, 2007 9:01 am

12 songs selected 4 times = total of 48 songs.

Each student selects 2 songs. Hence total number of students
= 48/2 = 24

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