Tell whose CD collection has the greater ratio of rock CDs to total CDs. Glen has 9 rock CDs, 4classical CDs, and 5 other kind of CDs. Nina has 12 rock CDs, 8 classical CDs, and 7 other kind of CDs.

2 answers

Glen: 9/18 = 1/2 = 27/54
Nina: 12/27 = 24/54
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