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Mathematics, 03.03.2021 20:40 lavardamon123

3. Bir siniftaki kızların sayısının erkeklerin
5
sayısına oranı
'dir.
7
Bu sınıftaki erkek öğrencilerin sayısı 21
olduğuna göre kız öğrenci sayısı kaçtır?
A) 10 B) 12 C) 15 D) 18​

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